There are two kinds of fast: material and spiritual. The material fast consists in abstaining from food and drink, that is, refraining from satisfying the physical appetites. But the true and spiritual fast is for man to forsake covetous desires, heedlessness, and evil and animalistic attributes. The material fast is therefore a symbol of that spiritual fast. It is like saying: “O Divine Providence! As I am abstaining from bodily desires and from all occupation with food and drink, even so purify and sanctify my heart from the love of anyone save Thyself, and shield and protect my soul from corrupt inclinations and satanic qualities, that my spirit may commune with the breaths of holiness and fast from the mention of all else besides Thee.”