To the Best of Our Knowledge Published by To the Best of Our Knowledge Lessons from a Psychedelic Guide Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/741791/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend A psychedelic trip can be mind-bending. So to be safe, you need a guide like Katherine MacLean, who can hold your hand and to help process what can be overwhelming experience.