Few people know that the main reason Tran came to the internal practice of Wing Chun as a cure for
tuberculosis. Before coming to Wing Chun, Tran practiced many other martial arts but after a period of practice, he became unhealthy and got tuberculosis. According to doctors at the National Tuberculosis and Lung Disease Hospital, his disease was in stage 3, coughing up blood, and
pleural effusion. At that time,
Yuen Chai Wan opened a traditional medicine shop on Hang Buom street, but mainly taught martial arts. Seeing that Tran was seriously ill, Yuen said to him: "I will cure you for the first time." Since then, Yuen dedicated himself to teaching him, thanks to the transmission energy training methods, upper inner qigong, combined with medical treatment, Tran gradually recovered from his illness and his Wing Chun healing methods became increasingly advanced. Not only did he cure his illnesses, but he was also the first disciple to be healed by Yuen's Gong practice. Yuen's act of saving a life through qigong was re-performed by Tran with doctor Nguyen Khac Vien. At that time, the institute's doctor was working at The Goi Publishing House, and he had just came from
France after a long period of treatment but did not heal. After Hearing about Tran, he went to see him. Seeing that doctor Nguyen had severe tuberculosis, he went to Saint Hilaire du Touvet Hospital, went to the operating table 7 times, cut eight ribs, cut the entire right lung with 1/3 left. Seeing as the disease could be cured with Wing Chun's healing training, Tran gave Nguyen specific exercises, practiced qigong, impacted internal organs so that all parts of the body could regulate
yin and yang to works smoothly. And doctor Nguyen had a full recovery in 1943, thanks to high energy in practicing qigong. After that, Nguyen studied in-depth the methods of practicing healing and promoted it to many people through his series of experiences that were published in books. In 1977, Nguyen decided to make a documentary film about this life-changing healing practice method. ==Death and legacy==