In 2013, West released "Fill These Hearts," which addresses the idea of Christianity as a repressive, anti-sex religion and presents that the restless yearnings felt in one's bodies and spirits are the cry of one's heart for God. The book's release was followed by a series of cultural events around the United States featuring West and musical act Mike Mangione and the Union that combined art, music and theological reflection. Colleen Carroll Campbell, author of "My Sisters the Saints: A Spiritual Memoir," said Christopher West "is a gifted and effective evangelist with a passion for tackling one of the greatest obstacles to belief today: the heresy that Christianity is a joyless, rule-bound religion. Not so, argues West, in this timely, powerful book. Drawing upon Scripture, the saints and the glimmers of truth in pop culture, West reminds us that Christianity is essentially a love story, and Christian sexual ethics exist to help us fulfill, not repress, our deepest desires. For anyone who has ever doubted that Christ’s call to purity of heart is good news, "Fill These Hearts" will prove a surprising and consoling read, one with the potential to change your life as well as your mind."