In what may seem an unlikely pairing, Rev. Dr. Mary E. Mitchell and Dr. Michael J. Nichols share more than a decade of correspondence focused on spirituality in the harsh setting of a Missouri maximum-security prison. Mitchell, an ordained Centers for Spiritual Living minister, and Nichols, a felon sentenced to life without parole, share letters remarkable in their candor and insightful in the possibilities inherent in every soul. Within these pages,...