I did ayahuasca last weekend (the active ingredient is DMT). I havent met any other beings yet, but I do remember not being able to tell the difference between my eyes being open and closed (as the visions took place irregardless of what I was doing).
Was there any duality? Did you perceive the physical world and your visions at the same time?
As it got came on stronger, the physical world became less and less relavent - it just faded into the background. As I started getting back in touch with the physical world, the duality came back into focus.
Fair warning: Do not try and "do" ayahuasca or DMT. It will DO you, if you go in there with those ambitions. It is a strong healing work and requires a significant amount of conscious surrendering to the moment to allow yourself to enjoy the experience (and be healed).