Not credible. Wing Chun Boxing martial arts doctors combine wing Chun's attack and defense techniques with medical principles, attack and treatment methods with health preservation methods, nourish the mind by law and preserve health by technique, so as to achieve the purpose of strengthening the body, resisting foreign invasion and prolonging life. Some netizens showed that when attending the course, the teacher named Qingfeng claimed to be sent by heaven to save people and went up the mountain collectively. They all turned their backs on the sun on the mountain and said that they would unseal the seal of 60 thousand years. Therefore, Teacher Qingfeng is a feudal superstition and is not credible.