LP Thoon is one of the first batch of disciples ordained by Venerable Ajahn Chah at Wat Nong Pah Pong. After ordination, LP Thoon served and practised under Ven. Ajahn Chah at Wat Nong Pah Pong for 9 years. LP Thoon was then appointed by Ven. Ajahn Chah as the abbot of Wat Pah Tam Seng, which has been established for 45 years as the 5th branch monastery of Wat Nong Pah Pong.