The psychological condition of fear is divorced from any concrete and true immediate danger. It comes in many forms: unease, worry, anxiety, nervousness, tension, dread, phobia, and so on. This kind of psychological fear is always of something that might happen, not of something that is happening now.

Practicing the Power of Now: Essential Teachings, Meditations, and Exercises from the Power of Now (ed. New World Library, 2001) - ISBN: 9781577311959