"Whispers: Being with God in Breathe Prayers" by Jeanie Wise is a small book that makes praying as easy as breathing. If you are familiar with yoga than you are familiar with using your breath to move or chant. Wise takes a similar approach to praying. The praying will use his or her breath to focus on the words that the person is to concentrate on.
I liked this idea. I have begun to use it frequently in daily life. If you have ever tried Christoga, a form of yoga and worship for Christians, the two are very similar. You will receive all of the physical benefit from yoga as well as the spiritual. A twofer. The book is very short, but the benefits are long. I received this book in exchange for a review from the author.