“Any man who can drive safely while kissing a pretty girl is simply not giving the kiss the attention it deserves.”
You might argue that these are one and the same, but I would argue that without being in the present, you cannot effectively focus on anything. If you dwell on the past, it is like trying to drive through your rear view mirror. If you are too far ahead of yourself, you will miss what is right in front of you.
Spencer Johnson wrote a great allegorical novel about this very topic.
Buy it. Read it. Nuf said.