Phase Five: Synchronization
Synchronization is the counterpart of Integration. It is the mechanism by which momentum generated by an external source—such as an opponent’s push or pull—is efficiently transferred from the upper parts of the body to the lower parts through coordinated sequencing of actions across body segments.
Together, Synchronization and Integration form a complete cycle for harnessing External Power—both the body’s gravity and an opponent’s impact.
1. Goal
The goal of Phase Five is to understand the sequence of bodily actions that occur during passively induced movement and to internalize the mechanism of synchronization.
2. Focus
Movement
Focus on the timing and sequence of actions taken by each body part during passive movement initiated by external force.
Yi
Focus on the timing of Yi as it responds to external impact and triggers coordinated movement across body parts.
Jin
Jin plays a key role in the background throughout. It is mobilized automatically when Yi issues its command in response to perceived external impact. There is no need to think about Jin directly.
3. Milestone
It is considered a milestone when the timing and sequencing of body actions can be embodied in a few typical situations, such as lightly pushing against a wall. In this case, the external force generated by the wall’s reaction is perceived to travel from the hands, through the arms and upper body, and down to the lower body.
A similar sensation may be experienced when the hands lightly contact an imagined, invisible obstacle, where subtle external impact is perceived to transfer from the hands to the lower body.
As this process continues, the mechanism of Synchronization gradually extends across an increasing range of externally induced movements.
4. Relationship Between Integration and Synchronization
Integration and Synchronization are complementary mechanisms that operate in opposite directions but follow the same underlying logic of sequencing and timing.
Integration governs the transfer of gravity-generated momentum—from the lower body upward—while Synchronization governs the transfer of externally induced momentum—from the upper body downward.
Mastery of Integration prepares the body to organize gravity-generated force; mastery of Synchronization prepares it to receive and redirect force from outside. Together, they form a closed training loop for harnessing External Power, which is fully examined and validated through Push-Hands.
Taijiquan Framework 