What cannot be read cannot be expressed.
Just as you cannot speak a foreign language you cannot hear, you cannot program in a programming language you cannot read.
The same is true of drawing; what cannot be "read" cannot be expressed. However, anyone can "see" and think he or she is able to do so.
Ah, I finally realized what I had verbalized in my mind and looked at it outside, this is what "(a) look" means. When you put it that way, it's a concept close to the Buddhist "right view. ---
This page is auto-translated from /nishio/読み取ることができないものは表現することができない。 using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. I'm very happy to spread my thought to non-Japanese readers.