TOK SEN's treatment has been protected by people's experience in the long history of the Issan region in northeastern Thailand. It has been handed down by oral tradition from teacher to disciple and from father to child for generations.The mallet used in TOK SEN is always made from thundered trees, not ordinary trees, and is a spiritual method of operation where energy from the heavens is thought to enhance the effect.TOK SEN hits the muscles and tendons that are tightening and relaxes the muscles more quickly than a regular massage. It is a treatment method that is effective not only for muscles and tendons but also for pain in joints, etc., because it loosens tendons.In addition, TOK SEN's treatment sound has an excellent effect of relaxing the spirit with a unique sound.