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.
Source: The Power of Now : A Guide to Spiritual Enlightenment, Pages: 35
They were nice enough people and all, but there wasn't much love in them. Because they were too busy being afraid. Love didn't grow very well in a place where there was only fear, just as plants didn't grow very well in a place where it was always dark.