So, with all of this in mind the one question remains: Why is the alien/elf archetype so common to the DMT experience? The only answer I have is that we humans must have some kind of innate evolutionary wetworking that forces us to latch onto any piece of anthropomorphic data that pops up in otherwise random sensory data, such as spotting a face peering out from behind the bushes, or spotting another human form hiding in the tall grass. The evolutionary advantage of such a trait is obvious, and in standard Rorschach tests even the most ambiguous blobs are found to look like faces or people no matter what culture the observer is from. Now, given the amazing swirling kaliedescopic imagery produced in the typical DMT trip, it is inevitable that anthropomorphic shapes will emerge and then express themselves in even greater detail as the mind latches onto them and "dreams" them into focus. With the imaginal workflow kicked into high gear, it is not surprising that these emergent anthropomorphic entities can then speak to us, revealing shocking details from our own subconscious in a conversational stream of visual theater. Given all of this, in a nutshell, the case for automous disencarnate DMT entities is closed. All that is needed to produce them is our own over-activated imagination, and thus Occam's razor wipes them right off the table and into the fairy-dust bin.
In conclusion I would just like to mention a couple more things. The visions produced by DMT are not solely elfs and alien entities. A wide variety of archetypes and just plain-old whacked-out stoner shit creeps into the mix. It is highly individual and in many cases is heavily dependent on set and setting. This fact alone (more than anything else) leads me to believe that the DMT enitites are mere figments. If, for example, everyone always saw talking penguins and only talking penguins while high on DMT, that would be much harder to explain and much more mysterious. The fact that DMT "consciousness" reveals itself in so many forms tells me that the "messenger" -- be it elf, alien, jaguar, or whatever -- is basically arbitrary within the context of the patterns and
archetypes our minds are generally trained to pick out of random noise. However (and this is the good part), the really interesting thing about DMT experiences is not the elves (messengers) themselves, but what it is they are saying (the message). And when you get to the heart of what the typical DMT message is, it is usually something about the environment or living systems or the vast plant consciousness that penetrates our world. The "Gaia consciousness" that infuses the experience is undeniable, and what to make of that I don't know, other than to entertain the possibility that this ancient plant consciousness actually exists and is attempting to make itself known through the DMT-enlightened mammal brain. If so, then this is the real discovery of the DMT experience, and this is the topic that should be looked at more closely. In the context of DMT being a two-way radio for plant-human communication, the "elves" themselves are nothing more than a cartoonish interface for the exchange of information.
Whoah dude, that's heavy.