And a direct result of that history is that the Church mandates certain practices to shape one's willpower: fasting (roughly half the year, in total, though "fasting" here means small vegan meals), some form of tithing &/or charitable work, explicit self-examination (not only standard prayers, but also Confession with a priest, who helps make a plan against bad habits, as well as an annual event where everyone in the parish asks forgiveness of each other) etc.