Although I like curved surfaces, my mind tends to draw lines. I think it is just he way I think. For some reason, I always have the image of stacking blocks or fitting pieces of a puzzle together. It seems odd, but my mind has to organize the interactions between objects. This drawing is similar. The drawing has lots of lines and connected triangles along with curves that go on to infinity. The shading draws the eye in to emphasize the symmetric nature of the shading and structure. Even though it is supposed to be a circle with soft lines and curves, I had the overwhelming desire to enclose the circle in structure or scaffolding so it would not collapse on itself. A circle o sphere can be deformed and reshaped while the triangle and square are much harder. They are bound by symmetry whereas the circle really has none.
The curves are outshoots of the stable structure of the square and triangle. The serve no purpose other than to adorn the stability of the square and triangle. If removed, the structure will remain and not fall. The slant of some of the shading shows that I really can’t draw worth a dam. Even the straight lines are crooked since I had no ruler. The drawing tries to be true but alas, it comes up short because I was too lazy to find a ruler.