Life flowing like a Stream

You look at a stream and think it is the same stream but it changes at every moment. We look in the mirror and see the same person, but every moment he/she is different. The stream lets go easily of its past and doesn't give a thought to the future. It so much more difficult for the reflection in the mirror to do the same and live in the present moment. I must be getting old, thinking philosophical thoughts like these. Sitting by a stream can do that to you!