Although I do not have much experience with the molecule (I'm just beginning my explorations with that one), I have used most other psychs as a tool for emotional/spiritual/mental growth. I like to think of it as my life reset button, I have never been one to use frequently, for me it's more of an every six months or so sort of thing. When I find myself swamped with negative thoughts, when conditioning has led me astray and I'm not listening to my true self, I find it appropriate to partake.
This usually involves me taking a dose and letting these substances remind me whats good in life, and what the next step is. By using I can evaluate were I'm at, figure out what I've been doing that isn't working and move on from there. In my experience mushies will especially show me what areas I've been lacking in, sometimes it can be hard to experience their scolding, but I find it very therapeutic. I like to use the allegory that I'm going to see my parents, they're going to discipline me, but it's out of their love. They've really been a kick start to in furthering my emotional IQ, I'm very grateful for all of my experiences.