A priestess of the Saraswati Arcology, on Elora. Note the delta-v forehead tattoo, received by those blessed in the incandescent wake of a fusion drive.

Eloran Hinduism is a branch of Hinduism that developed on the eponymous planet, following its settlement. With two hundred million followers, it is one of the most prominent religions of the interstellar age, and the first religion in the Traverse. As with Terran Hinduism, Eloran Hinduism, by definition, is less of a coherent religion and more of an umbrella denomination used for various traditions, some of which contradict each other. Though it finds its roots in the religious heritage of the first Hindi settlers of the Traverse, Eloran Hinduism evolved into a complex syncretism of not only Hindu traditions, but also Yoruba, Yazidi, Islamic, Sikh and Christian deities, rituals and theological elements. It is not, however, just a loose patchwork of practices; sixty years of continuous human presence in the Traverse have allowed Eloran Hinduism to coalesce into a coherent cult, with a strong sense of unity among its followers — forged not necessarily in the worship of the same deities, save for Saraswati, but in a shared geographical and material existence.

Eloran Hinduism strictly refuses the caste system, in the image of the interstellar Hindi community, and in that regard may be considered non-Vedic (i.e heretical or divergent) by more orthodox undercurrents. It is heavily influenced by the constituent syndicalist-environmentalist ideology of the Eloran Ekumen, and puts a great emphasis on one's relationship to the global biosphere. Eloran Hindus are strict vegetarians, and include harmony with the ecosystem (which goes further than basic notions of environmentalism and verses into a form of pantheist acknowledgement of the divine unity of the natural world) in their dharmic virtues. Eloran Hinduism also considers the contemplation of complex lifeforms as one of the noblest forms of kama (or pleasure, aesthetic enjoyment of life) and sees the liberation from samsara as unity with the natural world.

It would, however, be a mistake to consider Eloran Hinduism as a religion dedicated to a simple life among the trees and flowers on a paradise world. The main deity in Eloran Hinduism is Saraswati, considered the goddess of knowledge, science, and understanding. Central to her worship is the concept of Delta-V, not just as the scientific notion, but as a primordial impulse, which is often associated to dhī, or divine intuition; it is the prime mover that propels individuals and civilisations forwards. Saraswati is thus is known under many names ; she is the Mother of Impulse, worshipped in the burning embrace of fusion drives. She is the Machine of the Storm, serene in the eye of Eloran hurricanes. She is the Sword in Azure, mother of the geometry drive, openers of folds in the world. Her seat of power is the Saraswati Arcology on Elora, the tallest temple in the world, towering five kilometres above the shallow ocean, engineered to cut through hurricanes like a carbon blade in water. Her hymns salute the departure of interstellar spaceships and the return of weary travellers, while her sacred symbols adorn orbital furnaces and hidden forest paths alike.

Many a minor deity in Eloran Hinduism exists as an aspect of Saraswati. One of the most notable is the Great Peacock, syncretised from the supreme Yazidi angel. Its wings are akin to the radiator arrays of a fusion spaceship, reflecting human souls into the void and carrying them in the cycles of samsara.

Illustration for Starmoth by Tiucoo.

This imam of the Eloran branch of Interstellar Islam wears a traditional garb influenced by their Terran origin, with an ornate abaya and a veil. Note the earrings made of geometry crystals.

Interstellar Islam, sometimes referred to as The Third Branch of Islam, is an undercurrent of Islam that developed among non-Terran Muslim communities during the interstellar age, first in the Traverse. With 400 million practitioners, Interstellar Islam is one of the major religions of the modern era, albeit it is not as coherent and theologically isolated as the Outer Church. Indeed, and despite a few major disagreements, Terran Muslims consider Interstellar Muslims as siblings in faith, and vice versa.

A Side Road

The decentralized nature of Islam and the relative isolation of the first extrasolar settlements led to significant doctrinal and political drift compared to Terran Islam. The gradual widening of the gap led to the emergence of a set of doctrines, interpretations, and rituals that, by convention, are lumped under the denomination of Interstellar Islam. It is, however, not a united sect, and most scholars consider Interstellar Islam as a constellation of planetary Islamic branches with their own interpretations of the Quran and Hadiths, a branching tree rather than a singular path. That being said, Interstellar Islam can still be defined by what it isn't, that is to say, Shia or Sunni. Extrasolar Muslims do not recognize the legitimacy of Earth-based religious authorities and untransformed words, that is to say Hadiths, statements of religious law or interpretations of the Quran that haven't been revised and updated by extrasolar scholars. Transformation, the displacement of belief into the physical and mental environment of extrasolar worlds, is at the heart of Interstellar Islam. Out of all the divergent religions, Interstellar Islam puts the greatest emphasis on the existence of a mental and spiritual barrier between the Earth and the rest of human worlds.

The Six Pillars of Islam

Despite its theological diversity, Interstellar Islam maintains a coherent doctrine through its Six Pillars, which take elements from Shia, Sufi, and Sunni Islam. The Six Pillars are only observed in their entirety on Elora, while other communities only practice some of them, or merge them with local interpretations. 

1. The first pillar is the Shahada, or proclamation of faith. It is unchanged from the Terran proclamation: “There is no god but God, and Muhammad is the messenger of God.” It is said during the prayer, and it is considered acceptable to display it on the hull of Muslim-crewed spaceships. Reciting the Shahada in Arabic is the only required gesture to convert to Interstellar Islam and, as such, any creature capable of intelligent communication can convert.
   
2. The second pillar is the Salah, or prayer. Much like the Terran prayer, it begins with ablutions and is called by a muezzin, who either chants or displays messages. The faithful are not required to be facing Mecca, albeit some imams advise doing so whenever possible. Elorans typically face the southern pole of the planet. The prayer is done only twice a day, with the pace being dictated by the local conditions of the planet.
   
3. The third pillar is Zakat, or almsgiving. Within the socialist economy of extrasolar worlds, charity is rare and instead Zakat is expected to be conducted through community work. On majority Muslim worlds and stations, the Zakat is organised through specific communal organisations and syndicates, which are highly regarded in the humanitarian and scholarly spheres. 
4. The fourth pillar is Sawm, fasting, which is practised during the month of Ramadan. In the early days of Interstellar Islam, the sacred month was aligned on the Terran calendar, but is soon proved impractical, and now each planet or station has its own month of Ramadan. It is considered that one shouldn't fast more than once per Earth year, and as such, a traveller who would be arriving on a planet during the month of Ramadan isn't expected to fast it they already did so within the past year. 
5. The fifth pillar is the Hajj, or pilgrimage, which is a great point of contention among Interstellar Muslims, as many spacers do not wish to or can't perform the pilgrimage to Mecca. Traditions differ regarding the Hajj, with some planetary sects relinquishing it entirely and others professing that the pilgrimage to Darb ut-Tabānah station, in the Elora system, is sufficient. Smyrnian Muslims, in line with Ismaili traditions, consider that the only valuable Hajj is the visit to the imam. 
6. The sixth pillar is space travel : Interstellar Islam considers the geometry drive as a gift from God, and faster-than-light travel as both a way to witness the might of God (through the marvels of creations) and to perform self-betterment. It is common for a geometry drive to be displayed in the mihrab of a mosque, and many imams work as navigators.
   

Illustration for Starmoth by Tiucoo.

This pastor of the Outer Church wears purple, considered as a symbol of love and majesty, and the clerical collar borrowed from catholic traditions. The white dot on their forehead signals that they are married according to the Eloran rite.

The Outer Church, sometimes known as the Church of the Outer Stars, is a branch of Christianity that developed in the Low Age and found prominence among interstellar Christian communities during the past century. Though it originated as a simple offshoot of the Catholic Church, the Outer Church has significantly diverged in doctrinal and practical aspects, to the point many theologians do not consider it Christian anymore — albeit Outerian believers generally see themselves as such. With 200 million believers, the Outer Church is among the three largest divergent interstellar faiths and is very well-represented in the solar system.

A Tritheist Church

The most striking theological divergence of the Outer Church is its refusal of the Trinity. The Outer Church negates the consensus of the Council of Nicaea and does not accept the idea of one God existing in three equal, eternal and consubstantial divine persons. This refusal is more radical than the usual forms of nontrinitarianism in Christian theology — they mainly hinge on a denial of the full divine nature of Jesus Christ (such as Arianism) or on the idea that the distinctiveness of the Father, the Son and the resurrected Spirit are merely perceptions of the believer (such as Modalism). Instead, the Outer Church considers that the Trinity is, in fact, three separate, equal and almighty deities which act in unison but possess their distinctiveness: the Parent, the Child, and the Word (Holy Spirit), all referred to with a singular They. Thus, the fundamental creed of the Outer Church is tritheism, which denies Christian monotheism.

The origins of this tritheist belief are unclear even to historians. While the Low Age saw many a spiritual resurgence, from paganism to simpler, older forms of monotheist spirituality, there are no records of prominent Christian sects defending an actual tritheist doctrine in history — the notion was generally used as an accusation, not as a self-proclaimed creed. Critics of the Outer Church in the Christian community consider the emergence of Outerian tritheism as a dire consequence of the loss of theological knowledge during the Low Age and multiple, subsequent misreadings of the Bible. The Outer Church itself defends tritheism on the basis of nominalist thought: if the Parent and the Word were truly one substance, then it would mean both of them would have to be incarnate as well, which is obviously not the case as only the Son existed as a physical body. In that regard, Outerian theologians align with medieval thinker Roscelin of Compiègne, though the reference is likely unintentional.

Stellar Saints, Elected Pastors, the One Sacrament and Inherent Salvation

The Outer Church refuses the cult of human saints (with the notable exception of Saint Joseph of Cupertino, patron saint of spacers), which it considers as a disguised form of idolatry — however, it encourages and enshrines a form of “stellar sanctity”, where astronomical objects are imbued with the values of the Church. Star saints are meant to direct prayers and provide a concrete, physical anchor to the worship of the faithful, not to be an object of worship themselves — despite what misguided Papist might say, Outerians do not “pray the stars”, they merely see them as direct evidence of the existence of God, exemplified by natural wonder. As the Outer Church, like all Abrahamic faiths, is concerned with eschatology, out-of-sequence stellar remnants are of particular interest to its pastors — the holiest site of the Outer Church is Saint Magdalene's Abbey, a sanctified station orbiting Sagittarius A*, the black hole at the core of the Milky Way.

The Outer Church is non-hierarchical: its pastors are elected by the communities of the faithful (generally at the scale of a parish). The canon of the Outer Church is established through referendums among pastors. As a result, the Outer Church is a very dynamic sect, at the forefront of modern theology. It is fairly common to see sub-sects orbiting in and out of the Outer Church as the accepted canon evolves.

The pastors of the Outer Church lead the prayer in the parish's local language and only carry out a single sacrament — the holy communion, which is done with unleavened sacramental bread and heavy water; following the tradition of the Plymouth Brethren, the Outerians believe the communion to be a symbolic re-enactment of the Last Supper, with no real presence of the Child. As the doctrine of the Outer Church considers all sophonts — and not only humans — to be saved and within God's realm by birth alone, the pastors do not carry out baptism. They also hold the view that non-human intelligences can receive the Gospel, including Sequence, Forgotten Traveller or Vriij aliens.

Illustration for Starmoth by Tiucoo. 

The Omphal is a multiconfessional organisation, dedicated to the study, preservation, and propagation of human faiths.

The ideology of the Omphal is one of absolute inclusivity. According to the Omphal, there is no absolute religious truth. All religions and beliefs are correct, all at once, even in their contradictions. Divine revelation is a continuous and progressive process, with the teachings of every single religion in the world just being an aspect of this truth. Crucially, the Omphal also believes that divine truth is incomplete and as such, there is no way to determine which religion is more correct than the others. This incompleteness is radical. It is fundamentally impossible to access divine truth. The only elements humans can deduce are the shattered aspects of unfathomable concepts, which the various beliefs of humankind translate in their own way. The diversity of religion actually reinforces the understanding of this divine truth, as each of them casts a different light on it, thus every religion has to be nurtured, understood and protected. In fact, even atheism is integrated into this ideology, understood as the undying faith in a world without the divine. Faith is the most fundamental aspect of human experience, and the Omphal shall protect and further its dominion.

The Omphal itself is divided into orders, or Lodges, which are first and foremost styles. The organisation has a very peculiar relationship to rituals, symbols, chants, and writings. Religion is an illusion, and the Omphal will never argue against this. It simply considers that, with the absence of absolute divine truth, this illusion is what constitutes the heart of spirituality. Omphal buildings are vast cathedral-like structures that display a staggering syncretism of almost every faith in human history, filled with incense, colourful symbols and golden jewels…or sometimes simple, austere chambers reminiscent of the simplicity of ancient cults. Members of the Omphal refer to their spiritual persona using xe/xem pronouns.

Based on Cathedral Station, the Omphal currently has five main orders.

• Order of the Moon: the Omphal's diplomatic and cooperative branch. Its members wear black and white; many of them are former or active Solar Envoys.
  
• Order of the Path: this order wears red and white/gold. It is often considered as the most flamboyant order, maintaining a small fleet of ships that take design clues from Hindu temples and gothic cathedrals alike. Behind their cowls and veils, the members of the Path are skilled spacers and navigators, offering their services to pilgrims and priests alike.
  
• Order of the Pillar: wearing simple white tunics, the members of the Pillar are engineers, architects, and land planners who are dedicated to cataloguing, maintaining and in some cases building places of worship, regardless of religion or belief. The Pillar is mostly active on Earth due to the sheer density of historical buildings on the planet.
  
• Order of the Lodge: the Lodge is an order of librarians, theologists, and historians that keep and maintain records of the complex history of human religions. Their end goal is to create a universal encyclopedia of spirituality, a massive undertaking which they refer to as their “paper cathedral”. The members of the Lodge are almost as radiant as the followers of the Path, adorned in gold and white, followed by the scent of incense and the sight of candles floating in zero-g.
  
• Order of the Shattered Star: members of the Shattered Star never show their faces, hidden behind veils, ritual masks and shifting q-augs. They are the most secretive Omphal order, invested in the strange art of xenotheology, the study and occasional worship of non-human deities. In public, they wear long black robes covered in silver ornaments. During digs and expeditions, they like to use voidsuits equipped with biomechanical tendrils, anti-radiation robes, additional artificial eyes and drones shaped like human skulls. It is uncertain if the Shattered Star is putting an act for unknowable alien deities or if its members genuinely enjoy their well-defined aesthetic. 

“We have never ceased to believe."

Religion in the interstellar age is a vast and complex topic that requires to consider the matter of spirituality during the Low Age.

In the post-industrial context of the Low Age, religious or para-religious orders played a very important role in conserving knowledge and cultural achievements from times past, though this does not mean the Low Age was necessarily more religious than the industrial age. In fact, many of the religious or spiritual orders born in the Low Age evolved into powerful communes and cooperatives, which slowly lost their original nature to turn into more secular organisations. The Low Age also saw sweeping changes in the worldwide religious landscape, both through the evolution of historical religions and the creations of new ones. Most of these changes have carried over to the interstellar era, where spirituality plays a significant role, especially in isolated settlements that try to develop their own identity.

Yoruba Syncretism is the only major modern religion that was truly born in the Low Age, albeit it predated it (and most monotheist religions) by several thousand years. Though it originated in the homeland of the Yoruba people in Nigeria, this Polytheist-Animist religion also birthed numerous lineages in the Caribbean and Latin America during the pre-industrial and industrial era. Intense syncretism with various African traditions, Islam and Christianity during the Low Age gave birth to what is commonly described as Yoruba Syncretism — a complex, multipolar religion with a multitude of Orisha, or deities, and a supreme God that is sometimes merged with Allah or the Christian God. As Nigeria and Kenya became superpowers during the late Low Age, Yoruba Syncretism became the face of the Africa-led “second space age” and thus spread to many extrasolar worlds, becoming one of the largest human religions. In the present day, 650 million people follow Yoruba syncretism. The African city of Ile-Ife and the African Space Elevator are the main sacred Yoruba sites. 

Christianity is present under various shapes, albeit it remains mostly confined to the Earth, with the planet acting as a religious beacon, especially for Catholics. The various schisms of Christianity, by far the most chaotic modern religion, are described in greater detail here. The Outer Church is often lumped under Christianity due to its Marxist-evangelist origin in the Low Age. However, whether or not a religion that describes God as a woman, celebrates the stars as saints and FTL translations as sacraments has anything to do with Christianity anymore is an exercise best left to theologians. In total, a little more than 600 million people identify as Christians, mostly on Earth.

Islam was significantly reshaped by the Low Age. Though the Sunni/Shia divide is still alive and well, the real line of fracture within Islam is now between Terran, or Traditional Islam, and Interstellar Islam. Though Interstellar Islam shares a very similar theology, it has a wholly different reading of FTL travel. Traditional Islam sees the geometry drive as a tool. Interstellar Islam sees it as an instrument of Allah, a paracausal device intended to reveal the beauty of creation. Interstellar Islam mosques will often have a geometry drive in their mihrab, and its imams generally double as pilots or navigators. While both branches of Islam go on pilgrimage to Mecca, Interstellar Islam allows its followers to replace the Hajj by a pilgrimage to Darb ut-Tabānah Station. There are 900 million Muslims in human space, making Islam one of the driving cultural and religious forces of present-day humankind.

Hinduism is frequently considered as the de facto religion of the USRE due to the superstate's Indian origins, albeit Islam could readily dispute that claim. Modern Hinduism didn't significantly change during the Low Age, save for the loss of several holy sites due to climate change and their replacement by orbital sanctuaries. Its sister variant, Eloran Hinduism, is relatively similar, yet better understood as a form of polytheist syncretism, where Hindu deities coexist alongside Shinto and animist influences, and where Saraswati is considered as the main deity — indeed the Saraswati Arcology, towering at 5,000 metres above the Eloran sea, is the holiest site of extrasolar Hinduism. Both Hindu currents total more than a billion followers.

Buddhism remains relatively confined to the Earth, albeit many Buddhist enclaves can be found in extrasolar space. As a religion, it went through the Low Age remarkably unchanged, albeit its expansion to outer space led to a flourish of new aesthetics, where historical Buddhist temples are the exception rather than the rule. In total, Buddhism claims 400 million followers across human space. Aside from its historical sacred sites, modern Buddhism also considers the South Asian Space Elevator as a pilgrimage site, taking the elevation of the soul to the letter.

Animism is probably the most “artificial” category in the religious census, as it covers not a single one, but a myriad of faiths revived by the Low Age, from the various currents of African animism to modern ancestor worship as practised in the Irenian Enclaves for instance. 400 million sophonts self-identify as animists, among which a surprising number of artificial intelligences. Animism also covers spacer shamanism and ta variety of “star cults.”

About 200 million sophonts identify as religious, but without belonging to one of the major religions; the main minor organized religions in human space would be Judaism, Sikhism, modern Neo-Paganism and the Yazidi faith.