Ajahn (Acariya) Maha Bua was a Thai Buddhist monk. He was a disciple of the esteemed forest master Ajahn Mun Bhuridatta, and was himself considered a master in the Thai Forest Tradition. Ajahn Maha Bua is well known for the fluency and skill of his Dhamma talks, and their direct and dynamic approach. They obviously reflect his own attitude and the way he personally practiced Dhamma. He said about  disgusting things directly and used black humor to help people.