All cravings are the mind seeking salvation or fulfillment in external things and in the future as a substitute for the joy of Being.
Eckhart TolleSpace has no "existence." "To exist" literally means "to stand out." You cannot understand space because it doesn't stand out. Although in itself it has no existence, it enables everything else to exist. Silence has no existence either, nor does the unmanifested.
Eckhart Tolle