“Seth material” search engine (Jane Roberts)

“Certain injections then given to the brain actually help consciousness outside of the brain and act as nourishment. This is simply one method that is being used, however. The drug allows for regulated periods of highly intensified consciousness, operating at peak levels, with all the mental faculties accelerated. Between these periods, however, there are periods of unconsciousness. These are of a protective nature.

“There are other brain patterns, for example, than those discovered by your scientists. The drugs help in changing these patterns when it is necessary. If these brain patterns were not changed on entering and leaving a system, theoretically at least, the consciousness could become trapped within any given system: acceleration or deacceleration, you see, but mentally.”

“At a time when your thoughts veered off on a tangent. I believe you had a mental image of the inside portion of a human body, or a thought having to do with inner organs. This occurred as you picked up, on deeper levels, the presence of Dr. Pietra.”

Such travel between probable systems is done through projection of consciousness out of the body, as was explained in the excerpts, but this seems to involve a welding of medicine, physics, and other disciplines. In other statements in the past, Seth told us that any far-ranging space travel within our own system would also involve mental rather than physical journeys.