All praise is to Allah [alone] the Lord of everything that exists. Peace and prayers upon the one sent as a mercy to everything ?, his family members, companions and whoever seeks guidance with his guidance and strives to follow his Sunnah (actions of the Prophet (pbuh)) until the Last Day. Allah [the Exalted] made fasting [the month of Ramadan] an obligation upon His servants making clear the wisdom behind it.
Allah says,
“Oh you who profess faith, fasting has been prescribed for you as it was those who preceded you that you may attain taqwa.” (Quran, Surah Al Baqarah, 2:183)
Fasting is an act of worship that is attained while one is awake, sleeping and while one is busy with his daily affairs. Therefore, fasting is similar to the worship of the angels because their worship continues non-stop. When you fast, you keep it in every place and in every situation: work, school, while one is traveling and while one is at home. It is an act of worship that does not stop, but continues through the entire day and for that reason it is comparable the worship of angels.