You encounter a woman whose wrist is grasped tightly by a large man and in that instant after the grasp, the large man is put in uncompromising situation. You and he are both surprised, and the woman has him in some lock.

One can achieve this using leverage, which I deem a basic or step in the direction of using the mind and not brute force.

The concept of an integrated force in martial arts especially traditional Chinese martial arts comes from applying Taiji theory. A concept of the two poles combined yin-yang.

Taiji theory is everywhere in traditional Chinese martial arts. In Tai Chi or Taiji Quan it is fundamental.