The world outside us could have permanent existence or it could be just a imagined world. Imagine for instance, as world where life could never exist as it was an impossibility. This world would be equal to an imagined world, having nothing within it capable of giving it significance above any other arbitrary posited thing that our minds could conjure up. Existence in this sense as having fixed time and place is dependent on life. We can observe ways that what we see in the outside world is our own reflected image. Can we think of anything in the world, for instance, that has nothing to do with our human existence? Every rock, flower, star, bit of cosmic dust has relevance only because it describes man and his limited field of perception. If we were to drop a lab rat into a maze at birth, and have it live there indefinitely, almost everything the rat immediately observes would be condusive to the fact that it is in the maze. Every noticed thing that impacts it’s existence points to it’s reason for being in it’s present state. A person can lay claim to no more sophisticated understanding of anything beyond what exists for them to see.