It should be known that there are three grades of Fasting: ordinary, special, and extra-special.
Ordinary Fasting means abstaining from food, drink, and sexual satisfaction.
Special Fasting means keeping one’s ears, eyes, tongue, hands, and feet — and all other organs — free from sin.
Extra-special Fasting means fasting of the heart from unworthy concerns and worldly thoughts, in total disregard of everything but Allah, Great and Glorious is He.
This kind of Fast is broken by thinking of worldly matters, except for those conducive to religious ends, since these constitute provision for the Hereafter and are not of this lower world.. Those versed in the spiritual life of the heart have even said that a sin is recorded against one who concerns himself all day with arrangements for breaking his Fast. Such anxiety stems from a lack of trust in the bounty of Allah, Great and Glorious is He, and from a lack of certain faith in His promised sustenance.
To this third degree belong the Prophets, the true awliya and the intimates of Allah. It does not lend itself to detailed examination in words, as its true nature is better revealed in action. It consists of utmost dedication to Allah, Great and Glorious is He, to the neglect of everything other than Allah, Exalted is He. It is bound up with the significance of His words: ‘Say: “Allah (sent it down)”: then leave them to play in their vain discussions.’ [al-An’am,6:91]
Inward Requirements
As for Special Fasting, this is the kind practiced by the righteous. It means keeping all one’s organs free from sin and six things are required for its accomplishment:
1. SEE NOT WHAT DISPLEASES ALLAH
A Chaste regard, restrained from viewing anything that is blameworthy or reprehensible, or that distracts the heart and diverts it from the remembrance of Allah, Great and Glorious is He.
Said the Prophet, on him be peace: ‘The furtive glance is one of the poisoned arrows of Satan, on him be Allah’s curse. Whoever forsakes it for fear of Allah will receive from Him, Great and Glorious is He, a faith the sweetness of which he will find within his heart.’
Jabir relates from Anas that Allah’s Messenger, on him is peace, said: ‘Five things break a man’s Fast: lying, backbiting, gossiping, perjury and a lustful gaze.’

