Fasting is the willful refrainment from eating for a period of time. In a physiological context, fasting may refer to the metabolic status of a person who has not eaten overnight, or to the metabolic state achieved after complete digestion and absorption of a meal. Several metabolic adjustments occur during fasting. Fasting is a deliberate abstinence from physical gratification usually going without food for a period of time to achieve a greater spiritual goal. Fasting is intentionally denying the flesh in order to gain a response from the spirit. It means renouncing the natural in order to invoke the su- pernatural.

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