Wuji

Wuji (無極, “no pole” or “no limit”) is the undifferentiated state before yin and yang separate. It is the first word of Tai Chi theory: the Taijiquan Treatise opens with it — “Taiji is born of Wuji” — and every practice that follows is an application of that sentence.[1]

Meaning

The term comes from Song-dynasty Neo-Confucian cosmology (Zhou Dunyi’s Taiji Tu Shuo) and older Daoist sources. 无 (wu) negates; 极 (ji) is the pole, the limit, the axis. Wuji is therefore not emptiness in the casual sense but balance before differentiation: no front, no back, no heavy, no light. In cosmology it precedes Taiji, the polarity that generates the ten thousand things.

In the body

Standing meditation gives Wuji a physical test. The practitioner stands with weight even, joints neither locked nor collapsed, and removes the small corrections that ordinary posture makes constantly. What remains before movement is the state the texts name. The archive documents the method in Standing Meditation.

From Wuji to Taiji

The moment practice moves — weight shifts, one side empties, the other fills — Wuji becomes Taiji, and the yin-yang logic of the art takes over. The sequence is directional and one-way: stillness precedes motion, and motion returns to stillness. Pushing hands dramatizes the same sequence with a partner, which is why the Treatise treats them as one subject.

[1] Treatise of Taijiquan, opening line, archive translation with source text.