Phra Ajahn Looang Boo Sim Buddhacaro (1909-1992) was born on the 26th November 1909 in Sakhon Nakhon Province, North-East Thailand. His parents were farmers and dedicated supporters of the local monastery. At the age of 17 Looang Boo Sim took novice ordination and shortly afterwards became a disciple of the Ajaan Mun. Looang Boo Sim stayed with Ajaan Mun and various of his senior disciples for many years, taking full ordination at the age of 20 at Wat Sri Candaravasa, Khon Kaen.