Inscrutable

Aristotle and Dante Discover the Secrets of the Universe - Benjamin Alire Sáenz

"I went home and looked up the word inscrutable. It meant something that cannot easily be understood. I wrote down all the synonyms in my journal. 'Obscure.' 'Unfathomable.' 'Enigmatic.' 'Mysterious.' That afternoon, I learned two new words. 'Inscrutable.' And 'friend.'
Words were different when they lived inside of you."

 

(I promised that the last one was the last one, but this time I really mean it.  Promise.)