Following harsh religious rules and regulations will not get you to heaven. I cannot earn victory over sin by fasting or by slaving away in a monastery. My victory over sin was earned by Christ, who died on the cross for me. I cannot add to my own salvation by means of self-deprivation.
Since you died with Christ to the elemental spiritual forces of this world, why, as though you still belonged to the world, do you submit to its rules: 21 “Do not handle! Do not taste! Do not touch!”?22 These rules, which have to do with things that are all destined to perish with use, are based on merely human commands and teachings. 23 Such regulations indeed have an appearance of wisdom, with their self-imposed worship, their false humility and their harsh treatment of the body, but they lack any value in restraining sensual indulgence. (Colossians 2:20-23)