What do you do to get stronger? You lift weights. Try lifting weights for several hours, and then lift as much as you can. Does this make you lift more weight? Actually lifting weights breaks muscle down, it is the time between workouts that makes you stronger.
The body's healing ability and the adjustment holding time is what gets you well.
What is the job of the adjustment? To unlock the bone, so the body can make the adjustment.
It is as simple as that.