Proverb: Eyes are useless if the mind is blind
The eyes see tangible things, but the mind sees much more than that. Ideas are shaped in the mind. After ideas are formed they can now be manifested into real things. Therefore, while eyes are physical, the mind is mental. A mentally blind person can walk past great opportunities without recognising them. The human mind is a powerful resource.
We can summarise that knowledge and wisdom are the most important aspects of life. What do you think?