Clean Monday is celebrated 48 days before the Resurrection of the Lord and the Christian Easter. According to the Orthodox Church, Clean Monday is the first day after Shrove Sunday and marks the first day of Great Lent as well as the so-called Clean Week. On the day of Clean Monday, the fast for Easter begins and we celebrate it by eating koulouma and flying a kite.

During the "Exposure of the Order of the Kingdom" of Constantine Porphyrogenitus, on the day of Clean Monday in the hall of the Byzantine Palaces, which the Byzantines called the Magnavra hall, the emperor proclaimed the beginning of Lent.

Thus, from the Byzantine years until today, the days of Lent begin on Clean Monday, while at the same time we have the end of Halloween. In addition, the name signifies the spiritual and physical purification of Christians. The duration of the fast lasts 40 days, which are the days that Jesus fasted in the desert.

During the celebration of this day we eat traditional lagana (unleavened bread with sesame), as well as various other fasting foods such as taramas, seafood, bean salad and halva. Also, on Maundy Monday we have the custom of the kite, which together with the kouloumas is considered an essential element of Halloween and marks the end of the carnival feasts.

The term koulouma or otherwise koulouba, koumules, koumula or koumulathes, refers to the mass celebration of the world in nature.

According to the leading Greek folklorist Nikolaos Politis, the roots of the word koulouma come from the Latin word cumulus, which means abundance, excess as well as the epilogue. In the consciousness of the people it is a popular outdoor celebration.

Thus, Monday is the epilogue of the Halloween festivities that have begun since Maundy Thursday and the beginning of the great fast.