The present is the only moment that never becomes available for replay.

The past can be revisited, imperfectly, through memory and record. The future can be anticipated. The present is the only part that arrives once and cannot be returned to, which is exactly why it is so easy to spend it thinking about the other two.

Without making a discipline of it, try to notice a few times a day that you are actually here. The specific light, the sound, the person in front of you. Not to extract more from it, just to be present for the one portion of your life that does not get a second showing.