The sharpening process produces a wide range of patterns. Some are simple, others more complicated. They change each time the tool is sharpened. I use them to decorate stationery that is unique to each box or case and to make prints like these - what these images “mean” is up to you.
What you “see” depends on your perspective, so I made this box to rotate an image - it comes from the blade that cut the groove at the bottom.