Heaven is more than a destination; it is a motivation. Knowing that we shall dwell in the heavenly city ought to make a difference in our lives here and now.
The ability to calm your soul and wait before God is one of the most difficult things in the Christian life. Our old nature is restless... the world around us is frantically in a hurry. But a restless heart usually leads to a reckless life.
God made us and God is able to empower us to do whatever he calls us to do. Denying that we can accomplish God's work is not humility; it is the worst kind of pride.
If life is to have meaning, and if God's will is to be done, all of us have to accept who we are and what we are, give it back to God, and thank Him for the way He made us. What I am is God's gift to me; what I do with it is my gift to Him.