Tao Te Ching teaches us many important lessons.
In terms of combat we recognise that the 'power' can only be used if the student adheres strictly to the 'way' of the event.
Blocking the incoming force, struggling, resisting, postural instability... these bad habits prevent the student from having any power.

Instead, it is necessary to harmonise, accord, blend with the attack.
Neutralise, and counter-attack by borrowing power from the opponent and adding it to our own.

This is harder than it sounds, for the student must set aside their own pride and ego, and follow the parameters of the art exactly.