What works of literature from your youth/YA days have you reread with your adult brain and realized how much you missed the first time?

I recently found a copy of John Steinbeck's The Pearl and decided to give it another read. Wow, what a difference from my middle school brain and my full ass grown adult brain reading this. I feel like there was a lot of nuances I missed. I got the book before, but as an adult with more experiences, a developed frontal lobe, and more social, historical and political context that I really get it now. Anyone else and which book?