“Seth material” search engine (Jane Roberts)

When consciousness leaves the body, it identifies itself with one of these portions, and travels in its form. Each form, embodying certain identity characteristics, has its own environment. Its abilities allow it to operate in particular dimensions.

Since these selves exist simultaneously, it is then possible for consciousness to enter, or really form, such an image, undergo experiences within the characteristic pattern of reality, and then project to another image. In all cases consciousness forms the image. When consciousness changes, or travels at certain frequencies, it automatically changes its form. It is indeed possible to be involved with more than one form at once as in usual projection.

Now when you leave one form for the other, it of course is in the trance state. This applies to other forms beside the physical. You may look back upon it and think it a dead image of yourself, you see. Some individuals in their first astral form see their physical bodies as dead images of themselves and become frightened.