The Valley of Vision is a collection of Puritan prayers & devotions. When asked what books have had a great influence on his life, John MacArthur included The Valley of Vision among them.
Puritans like John Bunyan, Thomas Watson, Richard Baxter, and Isaac Watts knew their hearts, their Bibles, and their God much better than we do. Their prayers reveal a personal, humble, passionate relationship with an awesome God, a living Savior, and an active Spirit. Reading their meditations should inspire us to pursue the same level of reality as we worship God.
I have also been greatly encouraged by an album of songs inspired by The Valley of Vision released by Sovereign Grace Music. Available here or on iTunes.