What would Leonardo Do?

Leonardo da Vinci said to students seeking inspiration, “Look at the crack in the wall.”
The line that the shifting earth inscribes, the short line written over a long time. Is the path our life inscribes like that, determined by the slight shifts we make in the world. We’re distracted by the wallpaper patterns that people keep slapping up, but the cracks underneath are the pattern of real things. Leonardo conveyed the depths of a persona. I suspect it’s not the depths of Mona Lisa we see, but the depths of Leonardo da Vinci.
Dick Davis writes in his poem, “Leonardo” of how the painting began to crack in the artist’s lifetime:

The wrinkles growAs if paint too
Partook of sin.