Fear of the unknown

It's undoubtedly the most common fear of all - fear of the unknown. And, of course, what we want (or think we want) is for it not to be unknown after all - for it to be predictable. When you think about that, it's a contradiction in terms; it's utterly impossible. Look at it this way:

The unknown is what it is. And to be frightened of it is what sends everybody scurrying around chasing dreams, illusions, wars, peace, love, hate, all that. Accept that it’s unknown, and it’s plain sailing.

-John Lennon