庄子说:“正则静,静则明,明则虚,虚则无为而不为。”水是无形无色的,正是“虚”的象征,水无形无色,可以用任何承载者的形状来构形,在杯子中是杯子形象,在盆中是盆的形状,在任何容器中都可依据容器之形状而呈现出不同形态,武道实作也是要像水一样,能够适应任何对手。水在常温下是液态水,在冰点是固态的冰,在高温下是气态的蒸气,水的这种“随圆亦方”“随方亦圆”的特征意味着具有柔韧性、适应性。大成拳实作也有同样性质,要练就内面肌柔韧 Zhuangzi said: “The rules are static, static is clear, the rule is empty, the emptiness is nothing.” Water is intangible and colorless, it is the symbol of “emptiness,” water is invisible and colorless, and can be used in any shape of the carrier To shape the cup in the cup image, in the basin is the shape of the basin, in any container can be based on the shape of the container and showed a different shape, the martial arts practice is like water, able to adapt to any opponent. Water is liquid water at ordinary temperatures, solid ice at freezing and gaseous vapors at high temperatures. This “round, square” and “round-square” character of water implies flexibility and adaptability. Dacheng boxing practice has the same nature, to practice the inner facial flexibility