“Seth material” search engine (Jane Roberts)

(9:29.) A man believing he has heart trouble will finally, through his own anxiety, affect the functioning of his “involuntary” system until his heart is definitely harmed if the belief goes unchecked. The conscious mind directs the so-called involuntary systems of the body, and not the other way around. No idea slips insidiously past your awareness to affect your involuntary system unless it fits in with your own conscious beliefs. Once more, you will not be sick if you think you are well — but there may be other ideas that make you believe in the necessity for poor health.

You are not aware of how the body performs its many involuntary functions. The conscious mind could not handle all that data, but those functions perfectly mirror your consciously held ideas and beliefs.

Therefore a seeming division occurs, in which a portion of the invisible conscious mind is connected with the physical brain, and a portion of it is free of that connection. That [latter] part forms what you think of as the involuntary system of the body.