Luang Phor Maha Ud is a name often used by devotees with great respect when referring to the principal Buddha image or the sacred presence within the renowned Maha Ud ordination hall of Wat Nang Sao, an ancient hall featuring a single entrance and no windows according to mystical sciences believed to concentrate and contain maximum spiritual power. The Buddha image resides peacefully amidst a solemn and cool atmosphere characteristic of Maha Ud architecture, which is believed to grant visitors' wishes for loving-kindness, protection from danger, and a miraculous enhancement of meditative focus. This sanctity traces back to legends from the late Ayutthaya period, making the hall and its Buddha image a key destination where people travel to perform merit-making rituals to ward off misfortune and clear negative influences from their lives.