That breakthrough might be in the realm of the spirit. It may be in the realm of your emotions or personal habits. It may be in the realm of a very practical area of life, such as a relationship or finances. What I have seen repeatedly through the years-not only in the Scriptures but in countless personal stories that others have told me -- is that periods of fasting and prayer produce great spiritual results, many of which fall into the realm of a breakthrough. What wasn't a reality . . . suddenly was. What hadn't worked . . . suddenly did. The unwanted situation or object that was there . . . suddenly wasn't there. The relationship that was unloving . . . suddenly was loving. The job that hadn't materialized . . . suddenly did.
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. Some diagnostic tests are used to determine a fasting state. For example, a person is assumed to be fasting once 8–12 hours have elapsed since the last meal. Metabolic changes of the fasting state begin after absorption of a meal (typically 3–5 hours after eating).