Pope Shenouda III
Fasting in this way, becomes nourishment for your spirit.
The most hazardous thing that exhausts those who fast is that neither the body nor the soul is nourished. Fasting becomes a period of deprivation and torture. This is not the intention of a spiritual fast. Moreover, deprivation of the body only, gives fasting a negative image while leaving out the positive nourishment of the soul.