"You have all the mental and psychic energy you need for a triumphant
day, every day. But to avoid wastage, let's take an example of use-
less thinking. It is when people worry, 'But what can I do about all
my accumulated difficulties?'

Never forget this simple but remarkable reality: The more you walk
toward the mountain, the more you walk away from the desert. This
means you need attend only to where you are going, not to where
you are or where you have been. As long as you are headed for the
mountains, what slightest concern need you have for the scorched
desert? The desert is not your home; the mountaintop is your
dwelling place."

Vernon Howard - The Mystic Path to Cosmic Power, Chap. 13, p. 214