Been awhile since I read the book but if I recall correctly it is similar to pushing hands and other similar techniques. where the idea is to give ground when the opponent pushes forward and do so in a back and forth way. The idea is to yield before the actual push is felt. But remain in contact the whole time. It’s a sensory technique like sticky palm also. Where you gauge the persons movements and adjust as he/she is making them so that they basically can’t shift away from you so to speak. In the book it’s a technique that the Jedi are performing with each other and teach to a couple of the clone troopers. But like I said it’s been awhile since I read it.