Composition refers to the organization, arrangement, and combination of objects within the borders of a drawing space. For a great drawing, you want to bring the eyes of the viewer toward your center of interest within an aesthetically pleasing composition.
The idea that clockwise motion represents the forward motion of time so powerful that it's hard to look at such a watch or clock without having the slightly unsettling feeling that time is running backwards.
There are some exceptions that you should keep in mind when it comes to ceiling fan direction. If your ceiling fan is installed in a room with a high ceiling you still put the ceiling fan direction on clockwise or reverse motion in the winter although you should put the speed on medium or high. With higher ceilings it takes more than low speed to help re-circulate the warm air down to floor level.