I'm 100% positive that DMT doesn't "take us" into different dimensions. I'm not stating that, my point resting is... This molecule of sorts, opens up and older instinct in our brains, allowing us to see something that we wouldn't normally see with our own human eyes. It changes perception (in a trivial manner), and shows us what actually lies behind the world that we live in during our everyday lives.
what your saying is certainly possible and indeed the experience points to such a thing going on. if you are 100% positive you need to prove it otherwise you are relying strictly on information you got from an experience. its also possible thats its a delusion. by delusion i mean not real. SWIM has experienced what SWIM can only explain as other levels of reality or dimensions of reality but SWIM is also open to the possibility that it really could all be a delusion and until proven otherwise SWIM must remain skeptical and objective when traveling these realms.
the concept of delusion and reality under the influence of psychedelics is a complex one and ties into many scientific and mystical concepts about reality and the mind which we simply do not yet have the answers for. for example there is a chance that there is no such thing as other dimensions. yes modern theoretical physics is making a strong case for the presence of other dimensions but it has not panned out experimentally yet. could the DMT or psychedelic experience be used as a tool to determine if there are in fact other dimensions? perhaps I think it could but it takes more then just people sitting around smoking it. we need brain imaging high tech measurements of brain activity etc to start to unravel these mysteries. also experiments are going on to try and prove the existence of multiple dimensions which will be very exciting.