FIRST DRAFT, WILL BE EDITED FOR THE SAKE OF LORE
The Adama was a spiritual belief held by almost all Durparians.
After Mulhorand invaded Durpar and wiped out the barbarian clans, a simple trader emerged to lead the remnants of his people. His name was Satama and he claimed to have experienced a divine revelation, which he turned into the philosophy of the Adama.
The core principle of the Adama was that everything is the Adama. The gods, the world and everything in it were just aspects of the Adama.
To become one with the Adama, a person must have been born many times. As each reincarnation of that person was believed to reflect their previous life, believers in the Adama strove to improve themselves and their lives. Crime was as dangerous to oneself as it was to the victim as it grievously jeopardized a person's chance of being reincarnated as anything better than an animal. Therefore, not only did followers of the Adama make very hard workes at whatever they chose to do, but crime levels were surprisingly low all over the Shining Lands.
Killing was frowned upon, even in self-defense. Therefore, most Durparians who used arcane magic specialized in illusions since, for one to die from magic from that school, one must have believed in the illusion. This was seen as fate killing the aggressor and thus a lesser offense against the Adama.
Believers viewed the Adama as a unifying world-spirit and tended to worship its aspects, the gods, rather than the spirit itself. Therefore, very few temples to the Adama were built.
This led to massive religious diversity in the Shining Lands. Only gods who demanded human sacrifice had their faiths suppressed along with Mask, the god of thieves, for obvious reasons. Gods most associated with the Adama were Zionil(Gond ), Cuma (Oghma), Lucha (Selûne), Torm and Waukeen. Yondalla and Chauntea are also major within the religion.
Just like the gods were aspects of the Adama, so too were the various species of the world. No foller of the Adama would turn away anyone based on their race alone.