I did a mellow psychedelic once. I saw our ancestors on the plains of Africa. I understood why they had to be so tough. I understood the violence. And then I saw a butterfly and was fazed out for the rest of the trip.
Also negative things:
1. You don't always remember what you were tripping on
2. You don't always make sense of what you're seeing, and post-analysis doesn't make much sense either. And not really useful for the purpose of self-knowledge.
3. Bad trips, hard to escape. You have to come down.
4. Not to mention fucking up the wiring of your brain due to over-use (but too much anything can be a bad thing)
On that note, I find this interesting, that I look at the "negatives" of an issue. I guess sometimes focus too much on it. I try to be balanced. And on that note, I notice how you tend to drift towards the positive sides of issues. Care to discuss why? Not an accusation btw, sounds like it perhaps