The wisdom behind FASTING is in order for you to attain something called TAQWA.

يَ‍‍ا‌ ‌أَيُّهَا‌ ‌الَّذ‍ِ‍ي‍‍نَ ‌آمَنُو‌ا‌ كُتِبَ عَلَيْكُمُ ‌ال‍‍‍صِّ‍‍ي‍‍َ‍امُ كَمَا‌ كُتِبَ عَلَى‌ ‌الَّذ‍ِ‍ي‍‍نَ مِ‍‌‍نْ قَ‍‍‍بْ‍‍لِكُمْ لَعَلَّكُمْ تَتَّ‍‍قُ‍‍ونَ

Yā 'Ayyuhā Al-Ladhīna 'Āmanū Kutiba `Alaykumu Aş-Şiyāmu Kamā Kutiba `Alá Al-Ladhīna Min Qablikum La`allakum Tattaqūn

O you who believe! Observing As-Saum (the fasting) is prescribed for you as it was prescribed for those before you, that you may become Al-Muttaqûn

Qur'an 2:183

Fasting is a means of attaining taqwa (piety, being conscious of Allah), and taqwa means doing that which Allah has enjoined and avoiding that which He has forbidden.

Fasting is one of the greatest means of helping a person to fulfill the commands of Islam.

Imām Ībn Qayyīm رحمه الله said:

"The most beloved thing to Shaytān is that he causes the servant to be sad."

[ Madarīj as-Salikeen (p.500-501]

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Imam Abu Haneefah (d. 150H) (rahimahullaah) said:

"Adhere to the athar (narration) and the tareeqah (way) of the Salaf (Pious Predecessors) and beware of newly invented matters for all of it is innovation."

[Reported by As-Suyootee in Sawn al Mantaq wal-Kalaam p.32]

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Imam Ahmad ibn Hanbal (may Allaah have mercy on him) said:

“The basic principles of Sunnah in our view are: adherence to the way of the Companions of the Messenger of Allaah, following their example and forsaking bid’ah [innovation in the deen], for every bid’ah is a going astray.”

[Reference: Al-Laalkaa’i in Sharh Usool Ahl as-Sunnah]

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