Besides the Bible, it may be the best and most important book on ministry that I have read. Gospel-centered and trauma-informed, written by someone whose wisdom comes from decades of experience in the trenches of suffering, relationship with Christ, professional psychological care, and rich study of the Scriptures.
I wish I had this book in seminary. I wish I had this book before I entered the pastoral ministry.
If I could, I would assign it as required reading for every church member. It will expand and fuel your love for Christ and neighbor.