The Religion is the only formal belief system in the known world. Other belief systems exist, but they are mostly different forms of superstitions, mysticism and esotericism. The Religion is also the only universal faith, meaning it seeks worldwide acceptance and is actively looking to convert people.
The origins and foundations of the faith are somewhat obscured, which has lead to the fragmentation of the religion. The two main movements are the Old Creed and the New Creed but there are also numerous smaller movements, each focusing on different aspects of the faith, some having strayed far from their origins.
Though the Old Creed, the New Creed and the smaller movements have important differences in their interpretation of their faith, all branches of The Religion share a set of beliefs they hold essential to their faith. The Religion has two fundamental principles: 1) Fire is God and 2) the holy texts written by the Tribus Primus (Aquila, Barbatus and Tiberius) contain the word of God.
Fire is divine, and it is worshipped as God. The Religion is monotheistic; there are no other celestial beings except God. God is benevolent and good; everything else is evil. God is not omnipotent; God created man to serve him in this world. Time and life is linear; you only have one chance to live your life in service of God. There is only one afterlife and it lasts forever.
These and many other teachings of God were written thousands of years ago by the three prophets, the Tribus Primus. Aquila, Barbatus and Tiberius were three men who wrote a huge amount of text about God, forming the foundation of The Religion. These texts were written in many forms: books, letters, studies, research documents and even outright guides on how to live life in service of God. Numerous texts have been heavily copied, but there is no single book or paper that is universally accepted as the whole truth. Indeed, many (or even most) of the texts written by the Tribus Primus have been lost or remain undiscovered. Any and all texts written by the prophets are considered to be the word of God, so there can never be a sense of completeness or certainty among believers.
The texts are varied and are very much open to interpretation, but it is generally accepted that followers of The Religion should live good, meaningful lives, be kind to one another and serve God. The New Creed emphasizes that God is benevolent and forgiving, and to serve him is to be benevolent. The Old Creed maintains that believers should be good to other people, but also has a more terminal and linear approach to life: everyone has a chance to do the right thing and if they choose not to, punishment is the will of God. Both Creeds are firmly supported by many texts of the Tribus Primus.
Thousands of years of worship have affected customs and the way believers see the world. Fire and all things associated with it are divine. Light and warmth are considered good; darkness and coldness are considered evil. Some maintain that water, the elemental opposite of fire, is evil. The sun is fire and therefore God.
The holy texts state that fire burns and hurts mortals because mortals aren’t accustomed to being in close presence of the divine. By living life in service of God, man becomes as God and can bask in his warmth. It is said the Tribus Primus were so close to God they could walk through fire. The afterlife is the same for everyone; great halls that are on fire. How a person lived his life will determine whether he will live peacefully in the presence of God or whether he will burn in agony for eternity.