“Seth material” search engine (Jane Roberts)

This sort of experience involves a sudden psychic awareness, straight from the entity, that all boundaries are for practical purposes only. However, there are indeed many kinds of science. There are a number of sciences dealing just with locomotion. Had the human species gone into certain mental disciplines as thoroughly as it has explored technological disciplines, its practical transportation system would be vastly different, and yet by this time even more practical than it is now. (With amusement:) I am making this point because I want it made plain — this, dear Joseph, is a pun — that when I speak of science on another plane I may not speak of the plain old science that you know.

Planes can and do intermix without the knowledge of the inhabitants of the particular planes involved. I want to get away from the idea of a plane being a place. It may be in some cases but is not always. A plane may be a time. A plane, believe it or not, may be only one iota of vitality that seems to exist by itself. A plane is something apparently divided from the rest of the universe for a time and for a reason. A plane may cease to be. A plane may spring up where there was none. A plane is formed for entities as patterns for fulfillment on various levels. A plane is a climate conducive to the development of unique and particular capacities and achievements. A plane is an isolation of elements where each one is given the most possible space in which to function.

Planets have been used as planes and used again as other planes. A plane is not a cosmic location. It is oftentimes practical that entities or their various personalities visit one plane before another. This does not necessarily mean that one plane must be visited before another. A certain succession is merely more useful for the entity as a whole.

In other terms, you could say that an entity visits all planes simultaneously, as it is possible for you to visit a certain state, county, and city at one time. You might also visit the states of sorrow and joy almost simultaneously, and experience both emotions in heightened form because of the almost immediate contrast between them.