5) A new satisfaction. When you finish your fast, renewed, full of energy, detoxed, with a new desire, a new praise and a sensitivity to God’s voice, you’ll find that the absence of food was small in comparison to what you gained. When Christ’s disciples noticed that He hadn’t eaten all day and tried to get Him to slow down to eat, Christ said, “I have food to eat that you know nothing about….My food is to do the will of Him who sent me and to finish His work.”
Repent through fasting. Empathize with God’s grief over your sins by fasting. Engage your entire person in repentance by using your body to turn away from self-indulgence and toward God. At church, schedule some times to fast with others for group repentance, just as you all sometimes gather to feast together in celebration (at church parties, potluck dinners, etc.). Express your personal repentance through fasting at times like during Lent and Holy Week, when God seems absent from your life, and when you realize your own complicity in society’s moral wrongs.
Embrace a healthy body image. Reject the dualistic way of thinking about people’s bodies that’s so popular in our culture. Your body and spirit aren’t two separate entities; they’re united as one whole. When you understand the profound connections between your body and spirit, it will become natural for you to respond to spiritual experiences by doing something physical like fasting.
Worried about losing muscle if you fast? Maybe this will put your concerns to rest: a single 24-hour fast increased human growth hormone (HGH) by 2000% in men and 1300% in women. HGH plays an integral role in building muscle. Boosting your levels this high will have huge effect on your physique. Research shows that higher levels of HGH leads to lower levels of body fat, higher lean body mass and improved bone mass.
Weight-loss resistance can often be due to an underlying hormone imbalance. Leptin resistance occurs when your brain stops recognizing leptin's signals to use your body’s fat stores for energy. This causes your body to continually store fat instead of using it. Intermittent fasting has been shown to improve chronic inflammation that can dull the brain’s leptin receptor sites.
In some specific periods of time (like Caturmasya or Ekadashi fasting) it is said that one who fasts on these days and properly doing spiritual practice on these days like associating with devotees -sangha, chanting holy names of Hari (Vishnu, Narayana, Rama, Krishna) and similar (shravanam, kirtanam vishno) may be delivered from sins.
Fasting also helps us learn the lessons of the Day of Atonement : forgiveness, reconciliation to God and the need to resist Satan and pray for the time of his removal (Revelation 20:1-3 Revelation 20:1-3 1 And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand. 2 And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years, 3 And cast him into the bottomless pit, and shut him up, and set a seal on him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.
In the Bahá'í Faith, fasting is observed from sunrise to sunset during the Bahá'í month of 'Ala' ( 1 or 2 March – 19 or 20 March). Bahá'u'lláh established the guidelines in the Kitáb-i-Aqdas. It is the complete abstaining from both food and drink during daylight hours (including abstaining from smoking). Consumption of prescribed medications is not restricted. Observing the fast is an individual obligation and is binding on Bahá'ís between 15 years (considered the age of maturity) and 70 years old. Exceptions to fasting include individuals younger than 15 or older than 70; those suffering illness; women who are pregnant, nursing, or menstruating; travellers who meet specific criteria; individuals whose profession involves heavy labor and those who are very sick, where fasting would be considered dangerous. For those involved in heavy labor, they are advised to eat in private and generally to have simpler or smaller meals than are normal.