The purpose of fasting is not physical training to endure hunger, thirst and exhaustion, rather, it is displaying the ego to relinquish the beloved for the sake of the beloved. The Quran quotes (2:183), “O you who have believed, decreed upon you is fasting as it was decreed upon those before you that, you may become religious.”
This verse alludes to the fact that fasting was prescribed in all religions, in some way or the other. Roza is not specific to Islam alone but is a practice which exists in all religions. Roza is an annual reminder of the importance of food and water in our life in the absence of which it is impossible to continue life on earth.
Fasting is an integral part of spiritual control over the senses. It is a yogic practice because it reduces the tamasic elements in the body. Tamas is the greatest obstacles to meditation. Fasting and long hours meditation are two practices, which always go together. The medical science has proved fasting is medicine for many bodily ailments. It balances the nervous system. It increases energy, vitality and confidence.
Astrologically, Jupiter (guru) is considered religious planet which encourages rituals, fasting traditions, spiritualism, and meditation. When Jupiter is situated in ascendant, third or fourth house it gives excellent results for those persons on fasting. The persons born with Taurus, Libra, Sagittarius and Aquarius supposed to get obesity or ailments due to overeating. They would be beneficial to keep fast. Fasting represents the planet Jupiter, which is considered favourable for education and things related to mind. It often shows that native has been brought-up religiously. It is good for health, and physical resistance.