How to slow down at the end of the piece?

Organ playing is similar to driving a car. Imagine that you have to stop your car at the traffic light. Most of the time, if you are a good driver, you would start slowing down at some distance before the traffic light. You would notice it early and start slowing down little by little without any surprise to your passengers and to yourself.

It turns out this situation has many things in common with organ playing. You have to slow down very gradually at the end of the organ piece. I'm not talking about tempo changes at important structural points in the middle of the piece. Instead, I'm specifically referring to the end of your organ composition. This video will teach you how to do it in the most convincing manner.