Fasting is the cause of awakening man. The heart becomes tender and the spirituality of man increases. This is produced by the fact that man’s thoughts will be confined to the commemoration of God, and through this awakening and stimulation surely ideal advancements follow.
The fasting period...is essentially a period of meditation and prayer, of spiritual recuperation, during which the believer must strive to make the necessary readjustments in his inner life, and to refresh and reinvigorate the spiritual forces latent in his soul. Its significance and purpose are, therefore, fundamentally spiritual in character. Fasting is symbolic, and a reminder of abstinence from selfish and carnal desires.
Even though outwardly the Fast is difficult and toilsome, yet inwardly it is bounty and tranquillity. Purification and training are conditioned and dependent only on such rigorous exercises as are in accord with the Book of God and sanctioned by Divine law, not those which the deluded have inflicted upon the people. Whatsoever God hath revealed is beloved of the soul. We beseech Him that He may graciously assist us to do that which is pleasing and acceptable unto Him.
Verily, I say, fasting is the supreme remedy and the most great healing for the disease of self and passion.
... this material fast is an outer token of the spiritual fast; it is a symbol of self-restraint, the withholding of oneself from all appetites of the self, taking on the characteristics of the spirit, being carried away by the breathings of heaven and catching fire from the love of God.
As regards fasting, it constitutes, together with the obligatory prayers, the two pillars that sustain the revealed Law of God. They act as stimulants to the soul, strengthen, revive and purify it, and thus insure its steady development.
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.”