https://urantia-association.org/the-urantia-book/part-2/paper-33/ Our Creator Son is the personification of the 611,121st original concept of infinite identity of simultaneous origin in the Universal Father and the Eternal Son. The Michael of Nebadon is the “only-begotten Son” personalizing this 611,121st universal concept of divinity and infinity. His headquarters is in the threefold mansion of light on Salvington. And this dwelling is so ordered because Michael has experienced the living of all three phases of intelligent creature existence: spiritual, morontial, and material. Because of the name associated with his seventh and final bestowal on Urantia, he is sometimes spoken of as Christ Michael.