I have been transitioning from an unconscious metalhead to an empathetic loving "neoshamanic" nurse. I use the term "shaman" in quotes because I do not consider myself such, I am merely suggesting that I help others with guided visions, information, health info, scientific data, and connecting them in one form or another with plant wisdom. I am also a nurse, so teaching about health and being aware of one's intentions and actions is very important to what I am doing.
I have a lot of experience with altered states, through multiple mediums, endogenous and exogenous. Being my own guide, and seeking the wisdom of others, as our society shuns open dialogue of this nature. I see it as a very important part of spiritual awakeness, where at some point the message can be lost and learning can be halted. One may begin searching for answers, but can find himself wandering. This reinforces my belief that once the door is open, it can not be closed. I believe that you can not un-see what you have seen. Through this, the focus to recreate these visions, dimensions, doorways, or however you describe them, should be naturally, though meditative practices. I've heard from numerous 1st hand sources that DMT like visions can be obtained through deep meditative trances.
We have chemical locks in our brains which can be opened with special keys that have been used by our ancestors for hundreds of years. I love the work that Terrance Mckenna, Alexander Shulgan, and Rick Straussman have done for the community. I am an artist, a healer, a helper, a dreamer, a lover, a spirit, and above all, I am you, and you are me, and We are the universe.