part of the woo is that DMT is endogenous, basically the claim that DMT is (a) produced in the pineal gland (b) and in large enough quantities
Joe Rogan is big on it.
Ive done it, from research and experience it is safe and worth it if your into that sorta thing. I actually think that use of some psychedelics can help people grasp that fact that their brain merely constructs reality from sensory signals and internal data and that its not always correct, at least it drove that point home for me. Unfortunately it seem to also convince many that the supernatural is real, or perhaps simply reinforce a pre-existing belief or tendency.
here is a fun read A Case Against DMT Elves (entity(ies) reportedly seem by many DMT users)http://www.tripzine.com/listing.php?id=dmt_pickover