The plants are the pipeline into the Gaian intention. It's just not a coincidence that these plants carry this immense spiritual message. They are the pipeline of Gaian intentionality.
What the psychedelic experience really is, is opening the doorway into a lost continent of the human mind, a continent that we have almost lost all connection to, and the nature of this lost world of the human mind is that it is a Gaian entelechy.
We were essentially torn from the Gaian womb, thrust into the birth canal of history, and expelled sometime around the fall of the Roman Empire into the cold hard world of modern science, existentialism and all the rest of it.
Human history is a Gaian dream.