Gosh, the crazy Witch-Doctor made me laugh. Back in the day, when I still took psychotropic stuff more often than not, my then-girlfriend would call me "Little Shaman", because I got crazy guru-like over every tiny bullshit. "You gotta give the tea the time to brew. The tea is like a flower that needs to blossom in time!", is one of the things I said she STILL bugs me about :D
edit: I didn't use the best one! Shit! "The snail is moving slow, because the snail wants to move slow. It is not going to move any faster or any slower, because this is the speed the snail likes to go at" xD
On topic: I am absolutely with you on this. "Pure" Psychedelics like Psylocybin, LSD, Mescaline and so on are like a catalyst. You experience the world in a much stronger way, but you will also experience yourself in a much stronger way. If by nature you are not very empathic, or if the setting was bad, the trip might make you do things your inhibitions or general understanding of social morals would otherwise stop you from.
I have never heard something like that from MDMA, and it really does actively work on your empathy. I have a small form of autism(AS), and when I was young I couldn't really tell if a person was happy, sad, angry, I had to actively read body/mimical signs to define their mood. MDMA made that go away entirely, and it's something I am still thankful for. It's not like I wasn't empathic, I felt very strongly for the person once I knew what was up, but I just could never really tell 100%.