The Tai Chi Concepts and Experiments book clarifies and makes accessible critical aspects of the art that only a small number of high-level practitioners currently understand and manifest. Numerous step-by-step experiments are provided for readers to experience and perfect these critical tai chi aspects. Contents include: * The meaning and importance of releasing tension in movement for stability, health, and spirituality. * The differences between contractive and expansive strength including a promising mechanism for the nature of expansive strength. * Numerous experiments for readers to recognize and experience expansive strength and to confirm that they have achieved it. * Elucidation of famous master’s sayings on mind, strength, and chi. * Health and martial advantages of expansion over contraction in tai chi. * Protocols using expansion including those for helping an excess curvature of the upper and lower spine and for relieving plantar fasciitis. * Quotes from the classics and