Exceedingly helpful book for those seeking to mature in their prayer and apostolic lives. Greene is totally honest without being harsh about the challenges that await all who desire to grow in God's friendship. He also gives an excellent explanation and synthesis of both Carmelite and Ignatian spiritualities and how the two complement each other in the life of the mature pray-er apostle.
I highly recommend the entire prayer series by Thomas Greene - Opening to God, When the Well Runs Dry, and Drinking From A Dry Well.