Concentration

I was listening to this (notice that this is the London cast and not the Broadway cast.) I just purchased it today because of a need to have every recording of my favorite shows. In this recording, there is the following line:

You taught me about concentration. At first I thought that meant just being still, but I was to understand it meant much more. You meant to tell me to be where I was - not some place in the past or future. I worried too much about tomorrow.

I like when suddenly, out of nowhere, you receive a message that you need to hear.