Ohh it is way too late here for me to go into detail, but a few things:
Cannabis - I've smoked it daily throughout most of my adult life (not ATM tho). Didn't really understand how to use properly (although I definitely enjoyed the amplified sensory capabilities it introduces) until I understood that the main purpose of the plant is to help you achieve a meditative / flow state. That was sort of a level up moment, after that I found aid in it even when doing stuff people mostly don't do high - i.e. workouts. BTW Hollywood's "stoner" stereotype is so blatantly false and overblown that it's not even funny anymore.
Psilocybin - also did not understand it for a while. At one point I had sort of a spiritual experience with LSD, but regarding shrooms, I thought it was mostly "fun," similarly to cannabis I had experiences of heightened senses (but even much stronger, depending on the dosage obviously). Then, during one trip, I experienced both a complete "oneness" with everything; as well as ego death, whereas I actually thought I was going to die. And that the party we were throwing that night was not just any party, but my funeral 😄 Needless to say that really changed my outlook on life and made me realize the value of the short time we have here on Earth.
And not too long after, I had another quite mystical experience with shrooms, at a drum circle, where I ended up being in a trance for like 3 hours or so. In both instances there was also an inner dialogue between me and... IDK. The Universe? God? My higher self? My guardian angels? Someone. Someone that was me, but also NOT me. It's a bit difficult to describe 😄 Anyway, again, a completely unreal and mind-expanding experience.
While they were rather intense in nature, I do think these events gave me a new perspective on the whole game of life and I am eternally grateful for having been able to experience and learn from those layers of reality/consciousness.