“Seth material” search engine (Jane Roberts)

Earlier he could not afford to. Now, however, he must learn to use and understand these abilities. No plane remains the same; nothing remains the same. Even the requirements and necessities and properties of a universe change. The ideas change first. The conception behind constructions change. The perspectives change. What is perceived changes, as what is created changes.

As cooperation exists to aid in the maintenance of your physical universe, so cooperation exists between the unseen universes and your own universe; and each universe continually aids the other in the maintenance of reality.

There is constant interaction between all planes and universes. I am going to try to explain something here.

Now understanding this, you should be able to see how other planes, other reality continuums, can exist simultaneously with your own, and be unperceived consciously. This point of over lapse, or overlap, this point of overlap is extremely important, for there are points of overlapping in all universes; and this will also be a be a basic factor in travel, although not in any future in the physical universe in which you will be involved.