Meaning of the word "a closed mind is like a closed book, just a block of wood" in English

What does "a closed mind is like a closed book, just a block of wood" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a closed mind is like a closed book, just a block of wood

US /ə kloʊzd maɪnd ɪz laɪk ə kloʊzd bʊk, dʒʌst ə blɑːk əv wʊd/
UK /ə kləʊzd maɪnd ɪz laɪk ə kləʊzd bʊk, dʒʌst ə blɒk əv wʊd/
"a closed mind is like a closed book, just a block of wood" picture

Idiom

a proverb suggesting that a person who is unwilling to learn or consider new ideas is useless or unproductive

Example:
You should try to listen to other perspectives; remember, a closed mind is like a closed book, just a block of wood.
Without curiosity, a closed mind is like a closed book, just a block of wood, incapable of growth.