Matter is simply a concept. The world is made of language.
The danger is [in using psychedelic drugs], just to put it out there, is madness.
You're immortal as long as you live.
What blinds us, or what makes historical progress very difficult, is our lack of awareness of our ignorance.
Patanjali specifically says that there are three paths to the goal of yoga. And they are, control of the breath, control of posture, and light-filled herbs. It says it right there. Stanza 6 of the Yoga Sutras of Patanjali.
You are not naked when you take off your clothes. You still wear your religious assumptions, your prejudices, your fears, your illusions, your delusions. When you shed the cultural operating system, then essentially you stand naked before the inspection of your own psyche.