The second act of worship is fasting in the month of Ramadhaan, the 9th month of the Islamic calendar. This is obligatory upon every mature muslim except the sick, the traveller, a woman during her menstruation period and those infirm by age.
Fasting involves refraining from eating, drinking and sexual activity from the beginning of the nautical dawn to sunset. But these are not the sole objectives. Fasting is a conscious obedience of Allah's command. It is the human being's struggle to dedicate a whole month to activities which please his Maker. "It is the means", says Nasr, "by which man pulls the reins of his animal desires and realizes that he is more than an animal."
Fasting also begins with a declaration of intent to fast for the attainment of proximity to Allah. (II:184, 185, 187)
It is incumbent upon a muslim to know why he prays and why he fasts. Imaam Ali says, "One who knows not why he prays or why he fasts, his prayers and fasts are little more than meaningless physical exertions, hunger and thirst."