As we age, either imagination overtakes memory or memory overtakes imagination. Imagination is the road less taken, but it is the pathway of prayer. Prayer and imagination are directly proportional: the more you pray the bigger your imagination becomes because the Holy Spirit supersizes it with God-sized dreams. One litmus test of spiritual maturity is whether your dreams are getting bigger or smaller. The older you get, the more faith you should have because you've experienced more of God's faithfulness. And it is God's faithfulness that increases our faith and enlarges our dreams.
There is certainly nothing wrong with an occasional stroll down memory lane, but God wants you to keep dreaming until the day you die. You're never too old to go after the dreams God has put in your heart. And for the record, you're never too young either. Age is never a valid excuse …
If you keep praying, you'll keep dreaming, and conversely, if you keep dreaming, you'll keep praying. Dreaming is a form of praying, and praying is a form of dreaming. The more you pray the bigger your dreams will become. And the bigger your dreams become the more you will have to pray. In that process of drawing ever-enlarging prayer circles, the sphere of God's glory is expanded.
-- Mark Batterson in The Circle Maker