If you haven't read Terence McKenna's True Hallucinations, now might be a good time. For it is the basis for much of what is about to happen here...

Here's the audio book narrated by the author:

https://archive.org/details/TrueHallucinationsTerenceMcKennaFull

Here's the PDF:

https://pdfcoffee.com/terrence-mckenna-true-hallucinations-pdf-free.html

Terence would have been 77 today.