Some reflections on waiting on God:
You're waiting on a person. It's personal. You need something, but you need God
Waiting is worship. The highest form of worship is the lament. Worship is not an event, but a way of life. Bring a sacrifice of praise. Get all your eggs in one basket. Bet the farm.
Waiting is active. A surfer on a wave or a ballplayer at their position, waiting.
Prayer is primarily about changing the one praying. As you wait, you are transformed.
(The picture above are people waiting for "old faithful" to go off!)