“Seth material” search engine (Jane Roberts)

You may or may not have the sensation of traveling through the doors or windows. This is dependent upon the particular kind of projection involved. The molecular structure of the projecting self is of a different nature. There is no change in the physical nature of the door, for example. The molecular structure of the traveling self changes.

A study of any up-to-date scientific thesis on the nature of sensual perception in general will show you that sense data exists independent of the perceiver, yet not necessarily in physical terms.

Projection from a dream state is something else again, therefore, and when it is executed successfully then you have a fine example of the self as it changes the focus of its own awareness. Here the critical consciousness is quite apparent, while the body sleeps. Projections occur quite naturally under these conditions. For the development of the whole self however, and for the perfection of such experiences, it is beneficial that such projections be carried out by the conscious wish of the projector. You learn therefore to manipulate your own consciousness in different realities than the ones with which you are usually concerned.