The effect of fasting on a person
The month of Ramdhan can make one successful in many affairs. The Holy Month can make a human being such that till the next Holy month or till the end of the month, he will be controlled and not engage in that which Allah is not pleased with.
Ayatullah Khomeini
The Holy month of Ramadhan is from amongst the best months of Allah, in which the Almighty prepares various tools for his servants so that they can establish a special relationship with him. The real characteristic of fasting is to bring about a state in which a person is cut off from the material world and desires.
Ayatullah Tahreeri