While fasting, people refrain from fulfilling their basic desires for food, drink and sexual relations. This shows them that their mission in this religion is to control their desires and not allow their desires to control them and to overcome their desires and not be overcome by them. By doing so they take the path of self-rectification and do not fall into that which corrupts them.
الحبيب عمر بن حفيظ - Habib Umar bin Hafiz
islam