This booklet serves as the textbook for a course that attempts to modernize an ancient form of Chinese martial arts, called Tai Chi Chuen in which a Zen meditative state is used to enhance the effectiveness in training. Tai Chi as the principles of all forms of Dong gong, like Tai Chi Chuen and Jing gong, like meditation, can be applied into many activities to enhance the integrative body-mind training. In Chan (Zen in Japanese) meditation The main principles of Tai Chi have been infused into the four dignified modes of daily activities i.e. during walking, standing, sitting and when resting in a lying down posture. This booklet has added swimming as one more dignified mode of activities to improve on the effectiveness of the Dong gong. The major theme of this form of martial arts is its adhesiveness to the opponents. It is called the Pang form of power, 太極弸（鵬音）勁, which is concretely represented in my design of this new form of exercise, DITC as the water buoyancy, in which the therapeutic effect of exercises is enhanced by triggering the various innate body reflexes, like the head neck reflex and the swimming reflex. The therapeutic effect of reflexes has been empirically proven in an experiment using rats that were made to suffer an ischemic stroke.The initial practice among students of Dolphin Instance Tai Chi has reported encouraging results and hopefully, more refinements can be accomplished when DITC is taught in a larger scale. The therapeutic effectiveness of DITC is objectively monitored and measured by the benign changes in blood pressure and fitness improvement.The occipital weightless (Ding Tou Xuan頂頭懸) feeling claimed by many Tai Chi masters has a partial scientific foundation. In my book, Med Rehab Tai Chi (Ho 2010), I have collected extensive research evidence showing the scientifically based theories that prove the therapeutic effects of Tai Chi, Chan (Zen in Japanese) meditation and yoga. However, these practices are originally designed not for health enhancement. Tai Chi is a form of martial arts and the founders of the various forms of Tai Chi were famous for their ability to hurt people, not for their health and longevity benefits. Zen and yoga are religious rituals and the purpose of their religions is not health, too. Longevity and wisdom are just the side effects of their enlightenment.In Med Rehab Tai Chi (Ho 9) I have indicated, "Prolonged practice of using the reflex to move the body like a snake will have some health enhancement effects on the body. When the Dantian of the lower abdomen is activated and strengthened intensely enough the practitioner will feel that the body is straight and elastic with the sacrum connected to the neck and as a result, the head will feel as light as if it was floating in the air." This empirical finding of occipital weightless feeling by Tai chi masters several hundred years ago was scientifically proven in the occipital portion by a German, Rudorf Magnus in 1926. Using surgically treated animal in researches he has proven that the head position imposes a muscular tone on the rest of the body in posture and movements. This involuntary reflex is now named after him as the Magnus & De Kleijn reflexes, or as the head-neck reflex. He obtained a Nobel Prize for this finding (Magnus 33). The practice of Tai Chi intensifies this reflex as the equivalence of the whisker triggering reflex used in the UCI 2010 study of treating induced stroke in rats, detailed in next page.The practice of using the Dantian to govern the body movements in Tai Chi has strengthened this reflex so intensely that accomplished Tai Chi practitioners have the heads so balanced that they do not feel the weight of their heads at all. One clinically observed good side effect of Dolphin Tai Chi is its effectiveness to promote a good night sleep, especially among the patients with mental depression. When it is combined with Treadmill Ram Tai Chi in walking the effect is even be
