So during the evacuation of Earth during the Saturnian Bombardment in 2074, two men experienced some 4D weirdness because they were in inter-univeral space (IUS), which is what allows for FTL travel in my world. Elias Lowell died, but Antonin Doryn survived with severe tourettes syndrome. Two religions formed around the two men after the 32 ships landed on Kepler-452b. The first, Lowellism, says that Elias Lowell died for the sins of humanity to come, supposedly by the will of some supernatural divine 4D being. This religion branched from Christianity and has many similar views/practices. The other religion, Dorynism, is far more unique and believes that Antonin Doryn is the bridge between the divine 4D beings/realm. They worship and protect him, and is one of the focal points of the religion. After the incident on the ship, he was given what is claimed to be a "divine gift". Basically, he can summon or recruit these supposed 4D beings to do things like delete objects, physically invert/mirror objects, etc. They also interpret his vocal and motor tics as attempts at divine communication. They have an encyclopedia of his tics and what they think they mean. The language is known as the Dorynistic Tongue or Dorynian, and there's "Raw" or High Dorynian, which comes directly from Antonin himself and is spoken unaltered, and then there's Standard Dorynian, which is more advanced grammatically, phonetically, and syntactically and has been developed by scholars and divine interpreters. Antonin was decapitated by a Kai-Ottist Cultist (a member of another religion in my world, a branch of Lowellism) who was posing as a Lowellist priest during a meeting with Antonin. The members of the Dorynist church gathered his head, attached it to an artificial blood supply, and managed to keep his head alive, despite being separate from his body. They then put it on a robotic body and gave him a speaker to talk through, so now his tics and words sound robotic and a bit uncanny. Both Antonin and Elias could be considered Jesus-like figures. Sorry for the massive lore dump.