she first bathed and drank from a sacred brook, and then established contact with the god through his sacred tree, the laurel, much as conscious Assyrian kings are depicted being smeared by tree-cones
Jaynes argues that the Delphic Pythia used the laurel as a direct material medium for bicameral contact with Apollo, analogous to other ancient rituals of divine touch.
, The Origin of Consciousness in the Breakdown of the Bicameral Mind, 1976thesis