Terence McKenna: The Power of DMT:
http://debunkingdeath.blogspot.com/2017/07/terence-mckenna-power-of-dmt.html
A Doctor's Revolutionary Research into the Biology of Near-Death and Mystical Experiences:
http://welcometohealth.blogspot.com/2015/11/a-doctors-revolutionary-research-into.html
Joe Rogan: Fascinating Conversation on DMT and Consciousness