For me, my life was never the same after my first experience with LSD. I had such more profound respect for life, and I found that I could really just enjoy the simple things. I felt that I understood and connected with nature alot more as well. Though I've had VERY profound experiences on the other drugs you've mentioned, none of them have had the effect you described. The only ones that have on me were LSD, LSA, Psilocybin/Psilocin (mushrooms), Mescaline (Peyote), and 2C-i. The ones more likly to do this are Tryptamines, Phenethylamines, and Ergot type alkaloids.
Rik, I get that when I'm sober. I don't think I ever would have hadn't I tried psychedelics. I understand human behavior and can predict it as well.
nimble, I've noticed the same thing there as well. It is really interesting to see that I have experienced the same things as others on here.