What do you think of Tai Ji Chuan's "slow grinding and quick beating"?

When practicing, you should carefully understand and practice the kung fu of your bosom friend. Practicing pushing hands is practicing knowing each other's kung fu. At this time, we must give up ourselves and follow others, and decide our own changes according to the speed of the enemy. The enemy is fast, so am I (either fast or fast). Find the right beat and form a situation in which I am obedient to others.

Pay attention to master your own rhythm when practicing Xingyiquan, but there are other ways to practice in actual combat, which also pay attention to changing with the enemy.