Don't think about what you've left behind. If what one finds is made of pure matter, it will never spoil. And one can always come back. If what you had found was only a moment of light, like the explosion of a star, you would find nothing on your return.
Paulo CoelhoWe human beings have enormous difficulty in focusing on the present; we always thinking about what we did, about how we could have done it better.... or else we think about the future, about what we're going to do.... But at this precise moment, you also realize that you can change your future by bringing the past into the present. Past and future only exist in our mind. The present moment, though, is outside of time, it's Eternity.... It isn't what you did in the past the will affect the present. It's what you do in the present that will redeem the past and thereby change the future.
Paulo Coelho