Have you actually taken (non-endogenous) DMT and witnessed said alien intelligences with your own eyes?
I've only done my share of LSD in the past, which by comparison, seems quite tame and merely "psychological" than DMT.
For example, you used a rather non-rigorous descriptor, "weird". What constitutes a weird phenomenon?
Can we subject said constituents of a weird phenomenon to the same kinds of validations we can make about known true facts, i.e. observable existent things?