In the practice of Taiji we are supposed to stick and adhere to our opponent. Yet, its very common to find that when strikes are used in push hands this requirement flies out the window.
More often than not its common to see the striker lose contact and in the process also become rigid and hard.
In the practice of TaijiKinesis push hands when striking is used we try to stick to the spirit of conforming to the requirement of stick and adhere even when striking. This is one example.