The Four Primary Energies (Pháp / 八) — Peng, Lu, Ji, An as Unified Skill

The Big Idea

The Four Primary Energies (Bát / 八) are the foundational forces of Tai Chi technique: Peng (Pháp / ward-off, upward), Lu (Lượ / rollback, inward), Ji (Tỳ / press, down-and-across), and An (Án / push, forward).

At the 4.0 level, these are no longer seen as four separate techniques but as a rotating tetrahedron: Peng feeds into Lu (what goes up must come down), Lu feeds into Ji (inward energy turns down), Ji feeds into An (gathered energy pushes forward), An feeds back into Peng (forward energy rises). The tetrahedron spins continuously.

Drills

Tetrahedron Flow — Practice a simplified 4-movement sequence (Ward Off, Rollback, Press, Push) three times. First time, emphasize Peng (upward). Second time, Lu (inward). Third time, Ji (down-and-across). Fourth time, An (forward). Then practice all four in a single cycle, feeling the transition.

Dantian Dial — Place both palms on the dantian. Imagine turning a dial: as it turns clockwise, Peng activates. Counter-clockwise, Lu. Continue through all four positions. The rotation should be smooth and continuous.

The Balance Breaker

When one energy dominates (usually Peng because it's the most natural upward movement), the tetrahedron locks. Students get stuck pushing forward and cannot receive. The diagnostic: count cards for 30 seconds while a partner pushes. If you cannot feel their energy reaching your dantian within 5 seconds, the other three energies are underactive.

Master Cue

Four forces, one turn. Round and round they go.