These are the same reasons why we leave a movie ... the movie is either over, or it sucks .. and we want to enjoy something better.
Seth is basically saying the same thing.
“Innately, each person does realize that there is life after death, and in some instances such people realize that it is indeed time to move to another level of reality, to die and set out again with another brand-new world.
“… some people instinctively realize that their own individual development and fulfillment does now demand another new framework of existence.
“… regardless of the way such a man might die, it would be because the thrust and intent and purpose of his life was no longer in physical reality.”
(The Way Toward Health,Session June 11, 1984)