When people restrain themselves from food but are gossiping and envy someone, it is considered a sin. What is the use of the bodily fasting if we ignore the spiritual fasting? What is the use of helping others if we amass fortune by stealing? What is the use of good deeds if we are proud? We are mixing good deeds with vainglory. The devil wins again. Even if we make good deeds, it is useless, because we are mixing them with evil.