From an interview with Pasek and Paul about Edges:
What is your favorite moment in the show?
I'm not sure we have a favorite song or moment,
but I think we're proud of the closing number, which
is called "Like Breathing." I think what we like about
it is the simplicity of it. This show was written when
we were in college, and most of the numbers reflect
that. Many of them are fast-paced, packed with drama,
and the excitement of youth sort of spills into the
uptempo musical vamps and wordiness of the lyrics.
So it was therapeutic in a way, for us as writers and
for the show itself, to have this number at the end of
the show which basically says "Hey, hold on, I don't
have to think so hard...I don't have to worry so much...
I don't have to plan my life out down to the last
millisecond."