Fasting is mean to teach the person patience, sacrifice and humility. And Ramadan(the ninth month in Islamic calendar) is a time to fast for the sake of Allah/god, and to offer more prayer than usual. During Ramadan Muslims ask forgiveness for past sins, pray for guidance into the future, ask for help in refraining from everyday evils and try to purify themselves through self-restraint and good deeds.
Waiting Iftar in Amr ibn Al-Ash Mosque
