The tradition of lighting candles comes from ancient slavic Dziady feast and originally would take place on All Souls' Day. However, due to later common misunderstandings, it is performed nowadays mainly on All Saints Day, but, in that case is not called Zaduszki - the word Zaduszki originates from dzień zaduszny which can be translated as the day of the prayer for souls, and thus is more closely related to All Souls' Day. Streets are filled with silent and solemn crowds, and cemeteries glow with thousands of candles, presenting a unique and picturesque scene.