The scroll is set to show kinetic movement of the characters on the scroll. Although the scroll nor the characters on the scroll actually move, we get the sense of movement as we glide our eyes along it.
The drama unfolds as you look across the scroll with gaps in between each section which allows you to create your own idea of what’s going on between each “scene”.
If you glide your eye from left to right it creates a totally different idea of a story to it you glide your eye right to left. It gives the audience the idea that the story they see might not actually be the story that is unfolding in front of them.