Yin Shi Zi was a Chinese Master who trained in classical Chinese medicine and was a professor of physiology at Kuan-Hua University in Shanghai. For much of his youth he suffered from ill health. He wrote Tranquil Sitting in 1954 at the age of 81. Shifu Hwang is a practicing Taoist of the Chuen Zen School. Master Hwang has devoted his adult life to promoting Taoism and balanced health care. In 1996, he established TaiChi People Herb Co. and more recently he established Immortal Cancer Care Foundation for alternative cancer care education in Bastrop, Texas, where he resides. Cheney Crow lived in England, Spain and France before completing a PhD in Applied Linguistics and teaching at the University of Texas at Austin for twenty years. She continues to serve on doctoral committees at the University of Texas while she pursues a third graduate degree.