The fourth pillar of Islam is Fasting, which requires Muslims to fast during the sacred month of Ramadan. Ramadan fasting rules are that every pubescent Muslim is obligated to observe fasting, refraining from food, drink, and sexual activity throughout the fasting hours.

The purpose of Ramadan fasting in Islam is to enhance one's piety and provides an opportunity to empathize with the hunger and hardship experienced by the less fortunate. It instills discipline, strengthens one's devotion and religious commitment, fosters a deeper awareness of God and His favors, and serves as a method for seeking forgiveness.

Additionally, sawm serves as a beneficial exercise for the human body, as it allows us to cleanse our digestive system from the indulgence in unnecessary foods throughout the year. During the holy month of Ramadan, global markets often lower prices to support Muslims in their observance.