Christian tradition can name at least seven reasons for fasting:
1. From the beginning, God commanded some fasting, and sin entered into the world because Adam and Eve broke the fast.
2. For the Christian, fasting is ultimately about fasting from sin.
3. Fasting reveals our dependence on God and not the resources of this world.
4. Fasting is an ancient way of preparing for the Eucharist—the truest of foods.
5. Fasting is preparation for all the sacraments —for the reception of grace.
6. Fasting is a means of saving resources to give to the poor.
7. Fasting is a means of self-discipline, chastity, and the restraining of the appetites.