Congress can make no law respecting an establishment of religion. There is no requirement that you belong to an organized religion because that would be an unconstitutional interpretation of civil rights law. You can find religion in the Microsoft EULA if you want, and the SCOTUS has been very liberal in protecting sincerely held religious beliefs. For example... Last night you were charging your moon crystal through a telescope focused on Betelgeuse and a brightness fluctuation caused you to be visited by a transwoman spirit from the birthing waters. She warned you that the patriarch of white winter wanted to freeze your soul for eternity, and that he sent warriors to earth carrying a cooling potion disguised as a vaccine. Before leaving she placed a third wrinkle on your knuckle for protection, and said that anyone who sees the wrinkle will be a cursed. She instructed you to wear a glove, and to use care with this power.