Wax Castle Festival is held at the end of the Buddhist Lent. Northeasterners celebrate the end of the annual Buddhist Rains Retreat (Ok Phansa ) by constructing beeswax creations in the form of miniature Buddhist temples and shrines (wax castles). This wax castle is usually presented to the province's Phra Maha That relic as a tribute to the Lord Buddha at the end of the Buddhist Lent Day. People in the northeast (I-san) especially at Sakon Nakorn province mould beeswax into miniature Buddhist temples and wax castles in order to gain merit, which will determine their future rebirth. It is said that this festival of Sakon Nakorn dates from the time of King Suwannaphingkhan. He had his subjects make Ton Phoeng (wax trees) for the end of the Buddhist Lent and placed them in a procession to pay homage to Phra That Choeng Chum. The people of Sakon Nakhon have continued his tradition ever since. The event represents a traditional meri-making in the form of wax castle procession. Ok Phansa Day marks the end of the Buddhist lent and falls on the full moon of the eleventh lunar month (October 21st, 2002). This is a day of joyful celebration and merit-making. For Thai families, it is also the day they welcome a son back into the home and celebrate his successful completion of a term in the temple during Khao Phunsa period