Many Countries in asia have a custom a custom in which little boats,each carrying a candle , a torch, a lamp are released on the water at night .In thailand the tradition is called Loy Khrathong and come on the full moon night of the 12th lunar month .In one recent year this was after sunset on November 10.Some people believe the boats represent the footprints of the Lord Buddha on the bank of the Yamuna River in India