The Book is about the importance of growth in spiritual maturity, and a closer walk with God in obedience and humility. The spiritual growth optimizes your experience of living in a more peaceful and the contentment of a relationship with God the Father. Spirituality is no longer about religion but about your relationship with God the Creator, and how an understanding of that concept makes it easier to not see humanity in context of religion, but of understanding relationship with God the Creator. You should evaluate your stance, and religion, in context of spirituality with God, and not the spirit of the thief that may lead souls to destruction. Religion may limit you to being in the 'Astride Zone' unless you understand life as eternal, and beyond being able to make a living and pay bills. Learn spiritual economy to avoid pit falls in eternity. There are Biblical examples of relationship of people with God with consequences because of human limitations that is comfortable for most of us. Importance of discipline in the liberty that we have in Jesus Christ is a valuable lesson for eternal reward.