What is Osirism?

Osirism, also known as the Mysteries of Osiris is an ancient Egyptian mystery religion associated with Osiris, who is the god of immortality. The word mystery derives from Greek mystērion “secret rite or doctrine” from Greek mystikos “secret, connected with the mysteries”, from mystes “one who has been initiated”. Fundamental to Osirism are the initiation rites, which are based on the death and resurrection of Osiris. The initiated are permitted to attend a mystery school to learn the mysteries of the afterlife.