Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Individual spiritual development

Jack Hayford has written a readable, inspired work defining how real personal change is driven by our responses to the indwelling of the Holy Spirit in Christian believers. I work as a volunteer chaplain within my state's prison system and bought several copies to share with my pastor and those most closely associated with volunteers involved in sharing Christ with inmates within these institutions. Thanks Jack Hayford!