In her book The Closter Walk, Protestant author Kathleen Norris writes about the ways that the Catholic monastic tradition provides a rhythm and depth for spirituality that many Protestants have never explored. When she says that the life of prayer works "the earth of the heart," she means that prayer is like the act of cultivation. In order to work the soil, one must break up the hardened dirt clods, water the ground, free it from weeds and then plant a crop. Prayer is the way to "loosen up" the heart. During the natural course of our lives the "earth of our hearts" becomes parched, weed-infested and hard as flint. Unless we take care to break it up to run our fingers again through the rich soil that we know is there, our lives become as destitute and as desiccated as a desert.