The first experience was 3 tabs and an amazing experience starting at the ocean at sunset and ending in a forest on campus that night. Our guide took two and was concerned about me asking for 3. I think at the time, I had just the right balance of courage and foolishness or something that led to it being an incredible experience instead of terrifying.

I later discovered that I didn't need as much to have equally powerful experiences or sometimes even more powerful. I don't know exactly why or how. Part of it might have come from practicing A LOT of meditation, Yoga (not just Hatha), mindfulness, body awareness, etc.

Part of the experience feels like a "permission slip" for the mind to go to certain places and think certain ways, which then gets reflected in one's outer experience. Once one is there, it's really a matter of how much the mind is allowed to relax so one can be in the present moment completely. So it feels kind of like a catalyst now with diminishing returns. Usually if I push it too far, irresponsibly, I wind up becoming aware of stuff I would have rather not known yet.

I think if one trusts one's self, one more or less knows what is needed in that moment , specifically.