The effects of taiji practice are cumulative. You might say it’s like riding a bike. The body never forgets. But taiji is much more. The more you practice, the better it gets. Your whole being carries the effects onward even if you don’t practice for a long time. It’s like taking a pill that works on you while you just keep doing whatever you do. Of course, you do have to practice enough initially in order to store enough memory for the cumulative effects to take. But by the time you do, you won’t want to stop practicing. Nice trick, eh?