Know, that in the fast (Sawm) is a special quality that is not found in anything else. And that is its close connection to Allaah, such that He says:
‘‘The Fast (Sawm) is for Me and I will reward it.’’ 
This connection is enough to show the high status of fasting. Similarly, the Ka’bah is highly dignified due to its close connection to Him, as occurs in His statement:
‘‘And sanctify My House.’’ 
Indeed, the fast is only virtuous due to two significant concepts:
THE FIRST: It is a secret and hidden action, thus, no one from the creation is able to see it Therefore riyaa‘ (showing off) cannot enter into it.
THE SECOND: It is a means of subjugating the enemies of Allaah. This is because the road that the enemies (of Allaah) embark upon (in order to misguide the Son of Aadam) is that of desires. And eating and drinking strengthens the desires. There are many reports that indicate the merits of fasting, and they are well known. (Part 2 Coming Soon..)
 This article is taken from the book Mukhtasar Minhaajul-Qaasideen (p. 38-41) of the illustrious scholar and righteous Imaam, Ibn Qudaamah al-Maqdisee (d.529H). This article was translated by Isma'eel Ibn al-Arkaan and edited by Abu Khaliyl. There were also slight adaptions made to it, such as the exclusion of a couple of statements.
 Related by al-Bukhaaree (4/118) and Muslim (no. 1151).
 Sooratul-Hajj: 26