Laylatul Qadr -- Ascendance and Transcendence: Beyond the Physical Ritual

22:37 It is not their meat nor their blood, that reaches Allah: it is your piety that reaches Him: He has thus made them subject to you, that ye may glorify Allah for His Guidance to you [same phrasing in 2:185] and proclaim the good news to all who do right.

2:185 Ramadhan is the (month) in which was sent down the Qur'an, as a guide to mankind, also clear (Signs) for guidance and judgment (Between right and wrong). So, every one of you who is present (at his home) during that month should spend it in fasting, but if anyone is ill, or on a journey, the prescribed period (Should be made up) by days later. Allah intends every facility for you; He does not want to put to difficulties. (He wants you) to complete the prescribed period, and that you glorify Allah in that He has guided you; and perchance ye shall be grateful. 

On the authority of Abu Hurayrah (may Allah be pleased with him) from the Prophet (ﷺ), who said:

Allah (mighty and sublime be He) says: Fasting is Mine and it is I who give reward for it. [A man] gives up his sexual passion, his food and his drink for my sake. Fasting is like a shield, and he who fasts has two joys: a joy when he breaks his fast and a joy when he meets his Lord. The change in the breath of the mouth of him who fasts is better in Allah's estimation than the smell of musk. It was related by al-Bukhari (also by Muslim, Malik, at-Tirmidhi, an-Nasa'i and Ibn Majah).