Religion and mysticism are nothing but the delusions of ancient people experimenting with drugs.
Here are the rituals that the Ancient Egyptians undertook to become "Twice born" and see the afterlife, from here everything started.
"The entrance to the sanctuary was in the East and above this was a representation of the Great Eye, the secrets of which cannot be written. Before the Devoted Priests was a hidden doorway and this led down to the Marriage Chamber. In this chamber were performed the rites known as The Marriage of the Soul. Here, too, spiritual nourishment could be inhaled through fragrant smoke of incense prepared from secret essences and ingredients which activate life. Here was learned the profound Secret of the Soul, the secret that was in the silence. "
"The Aspiring One is of Earth, he is earthbound. He sits within the cavern before the Cauldron of Rebirth and Regeneration, and inhales the smoke from the brew of release. He rises above himself, flying on wings of five feathers, the names of which are recorded in the Book of Secret Mysteries, wherein are the awful recipes. There it is written that he may ascend like a falcon and cannot go otherwise than as a falcon. He may not go in the manner of any other bird."
"His body moves without the spirit and partakes of the sour yellow bread of wide vision. The Aspiring One drinks the brew of grey barley and sips long at the wine of harish, eating the cakes of green brown horris. He eats the fruit of the releasing tree and drinks the brew of black fungus, which is in the smoke goblet. Thus, he sleeps and the attendants lay him down in the receptacle called the Womb of Rebirth. He is in the Place of Visions but remains like the masthead bird."