John M. Allegro
Author: John M. Allegro
Publisher: Paperjacks (1971)

In raising the sacred fungus, the participants of the Anthesteria festival were calling up the dead. It is expressly stated by the ancient writers that the Anthesteria was devoted to tending the souls of the departed, and that during the festival the dead were supposed to rise to the upper world. The cult of the sacred mushroom, then, was a manifestation of necromancy, 'divination by the dead.