If people knew how hard I worked to get my mastery, it wouldn't seem so wonderful at all.
No one is born with the ability to accurately draw shape; it is a skill that requires training.
The beginner artist should initially be introduced to recognizing and drawing rectangles. The square is the first, and very easily learned, drawing exercise. From there you quickly proceed to acquiring the skills of sighting and assessing proportion.
Once you can accurately draw rectangles you are then ready to begin acquiring the skills of striking shapes. From this very basic foundational training your entire career is built.
My first strike of Verna took less than 10 seconds. I look; then see and assess; then strike.