“Seth material” search engine (Jane Roberts)

The dream body is the one with which you are most familiar. It has been called the astral body. It strikes you as being physical, though you can do things with it that you cannot do with your physical body. You can levitate with it, for example. As a rule you do not go through walls with this body. This is the body that you use for ordinary dreams. Levitation is possible with it, but on a very limited basis.

At physical death, after the last reincarnation, then the normal body form is the dream body, and excursions are made from this point, you see. It is possible to suddenly switch from the third form to the dream body, but at a considerable jolt to the consciousness, as a rule. Transition is simply too sudden.

Instead he has to form the imaginary image of a window, which is in itself some feat, and then project himself through this. It is quite all right. I merely wanted to point out what he did. When you project from the dream body, you see, consciously you are already outside, as a rule. You have already made the initial change away from physical focus.