Rabia of Basra

Time exists because we cannot see clearly. It is just as if you look out onto the street from the keyhole. A man is coming but you cannot see him. Suddenly he is there – but he was before. Suddenly he disappears again – he is still somewhere but your keyhole makes it difficult to see. Your keyhole creates the past, the present and the future.
Just a moment before the man was not there, so the person who has never left his keyhole will think that the man has appeared out of nothingness. That’s what future is. And when the man has gone a little further from the keyhole you cannot see him, and now you say that he has disappeared into the past.
The past is that which you cannot see any more, and the future is that which you cannot see yet.
But the man was there, is there, will be there. It is your key-hole that has created time. If you can come out, then you will see that the past was also present, the present is also present, and the future too, is present. Only the present is. Only now is. But remember the present is not part of time. The present is timeless… eternal.
Time is a concept because we are looking through the mind. The mind is the keyhole.

The Shadow of the Whip, Ch 24 (excerpt)