“Seth material” search engine (Jane Roberts)

The personality who sometimes speaks (Seth’s larger entity), can change form at will. He was never imprisoned by believing that one personality existed within one form. To your way of thinking he would change form according to his mood; as he thinks, he is. (Emphasized.)

His development began in your terms in such ancient times that for all intents and purposes you could say that in terms of value fulfillment he was so far advanced as to be alien entirely.

The well-advanced personality then is aware of nontime, but can use the time illusions of others and can enter the particular camouflage structures. The nontime principle however operates in such a manner that a personality can only participate in the ways that I have described, in systems with which he has some familiarity because of his own experience.

It would be extremely difficult for our friend, for example, to limit himself to existence within your time schedule. It’s illusion is far too apparent to him. He could however send other portions of his entity who were familiar with it.