To open to the sense, to become really conscious, you have to drop out of the future and the past and remain for a time in what T. S. Eliot called "the still point of the turning world" — the present. The only true reality is the present.
Being alone — physically alone atop a mountain — reminds me of how seldom one is alone in the sort of urbanized life we live nowadays. As I sat, there was a certain peace which I was able to capture for a moment. This physical aloneness is by no means the same as loneliness — not even close kin to it; for I was not alone. On occasions when I am able to get to a mountain top, the realization of the nature of the "mountain-top experience" returns anew.