Spiritual Regeneration shows how your striving creates a tremendous fire in you and how this fire energizes the physical, emotional, and mental natures and acts as a regenerating element in your life.
Spiritual means practical, factual, tangible, provable progress toward future accomplishments.
When you are progressively striving for achievement, then you are spiritual. Regeneration means that your physical, emotional, and mental natures are slowly imbued with the purpose and the vision of the future. It means that you say:
"In the future, I am going to do these things; I am going to be something; I am going to create various activities and projects in the world; I am going to master myself."
The author includes wonderful, practical daily exercises that are a great help in attaining spiritual regeneration.