Ascetic theology is the organized study or presentation of spiritual teachings found in Christian Scripture and the Church Fathers that help the faithful to more perfectly follow Christ and attain to Christian perfection.
Christian asceticism is commonly thought to imply self-denial for a spiritual purpose.
I think we'd all agree that SELF DENIAL is a powerful tool for overcoming addiction, beating vice and disciplining the body for mental and spiritual strength.
Fasting is one of the best way to achieve this.
But this amazing little book, written in 1589, is loaded with many other challenges, austerities, disciplines, mortification and motivation to be The Strongest Version Of Yourself... in a very Christian and spiritual way.