Physical Egregores Options

Hey, I was reading a bit about egregores and I came across something interesting. There wasn't a whole lot of information on it but apparently there have been cases where if enough power is combined, like in the instance of a full-fledged coven, it is possible to create a physical entity. Does anyone know anything about that or know where I could find more information on it?

This post has been edited by Thorn: Oct 21 2006, 04:18 PM

I first heard about it in connection with Alexandra David-Néel and her time in Tibet.
Although I personally have no direct experience or knowledge of the rites required
it may be a useful starting point in your search.

At Kum Bum she managed to create a 'tulpa', a phantom produced by intense concentration of thought and the repetition of relevant mystical rites over a period of months. She created a stout, phantom monk, whose form gradually became less ghost like and more life like. Before long the phantasm was accompanying her on her travels and behaving almost like a normal human being. However, he gradually began to change from a fat, jolly monk into a leaner more sinister character, and started to escape from her control. The tulpa was seen by others in her travelling party, proving it to have an objective existence outside of Alexandra's own mind, but, to avoid serious problems with her creation, Alexandra decided to 'dissolve' it. But this proved extremely difficult as the phantom clung desperately on to his life; she only succeeded in getting rid of him after six months of hard mental concentration.

http://www.mysteriouspeople.com/Alex_David-Neel2.htm