But be doers of the word, and not hearers only, deceiving yourselves. For if anyone is a hearer of the word and not a doer, he is like a man who looks intently at his natural face in a mirror. For he looks at himself and goes away and at once forgets what he was like.

James 1:22

In other words, we look in a mirror to see ourselves.  When we do this we are looking at what to change.