I find this a fascinating and little explored area of the paranormal. Tulpas are beings reputed to be created by self-disciplined imagination and meditation, the original word derived from a practice by Tibetan monks. In the occult tradition they are known as thought forms. The interesting part isn't so much that these beings end up becoming self-created hallucinations. It's the claim that once you create such a being it can take on a life and consciousness of its own and even appear to other people. Here is a good essay on the subject if you're interested. Note the connection to unconsciously generated poltergeists: http://dimensionalbliss.com/2011/03/07/tulpa-a-creature-made-by-thought/ Please Register or Log in to view the hidden image!