I think when you are on DMT, you are hallucinating, not traveling into another dimension. So therefore in order to "meet up" with another person would be to control perfectly how your mind absorbs a molecule into its receptors and then hallucinating that person. So yes, if you were to focus on a certain thing, I mean repetitiously imagining the same thing over and over, without a change of body or mind, meditating if you will, you would be able to "travel" or hallucinate whatever you were imagining. Kind of like when you do lots of repetitious things before you go to sleep, then having a hard time falling asleep because all you can think about is that task over and over.
Also there are many visualizations on the computer that mimic my DMT visual experiences fairly well. Although bound to by simple algorithms, they still are mind blowing. I don't think your brain is fair in telling you that we haven't created anything as amazing as your DMT-land.
I don't mean to mean to tread on anyones beliefs or anything, but I do have my own.
I just don't think a hallucination is another dimension. There is no proof. And until there is.. its just a theory.
Its kind of like saying that a video game is really happening in another dimension because I can see it and interact with it. Of course we can prove this to be false, which we cannot with hallucinations.. the thing is, we do not fully understand how the human brain truly works yet.
I am a firm believer that this SHE is a ridiculous pre-scientific tribal hippie theory..
Smoke your DMT, enjoy the trip.. and come back to reality!
Sorry if I offended anyone.
The Obelisk To a New Life