Drugs for mental/spiritual exploration

[Vibecrewangel]

I asked these questions once before quite a while ago. However, as we have quite a few new people on this board I'm going to ask them again.
If you answered before feel free to respond again if you like.

Do you think that hallucinogenic drugs such as peyote, lsd, mushrooms, dpt, dxm, amt, salvia, dmt, foxy, mdma or mda have any legitimate spiritual or mental explorational use.

Why or why not?

Have you ever done any hallucinogen or dissasociative? If so was the experience positive or negative?

If you have not, what are you basing your answer on?