Slowly, evenly, effortlessly. This is the surface effect of Taiji, its external manifestation, concealing a very different internal reality. (An automobile extends smoothly from A to B because it has an engine able to generate, harness and transform the energy from a series of combustive explosions.) The extended practice of Taiji gradually accrues a degree of awareness and control of its internal workings, not only to do better Taiji but to learn (internalize) some general principles of life.