You must be open to change in order to be used by God to make a difference for eternity in the life of someone else.
Satan desires to keep us dull, lifeless and only thinking of ourselves and our own problems. As long as he can do that, he has won a huge battle in our lives.
http://who-god-is.com/make-sure-you-dont-feel-without-acting-especially-if-its-something-important