So the name is called "Sowing" for the reason as shown in the picture. The object doesn't necessarily have to have so many "cuts."

The idea is to make "slices" within a single object, which allows a stroke or other object to over- and underlap an object in a single layer, without having to make extra layers to hide the "threading" object. This will prevent having to cut up, or mask or duplicate objects.

Basically it's also allowing anchors of the same object to switch between layers.