Some (hopefully obvious) caveats before we begin.

1. By definition, everyone sharing examples here has not deeply engaged with the source material, so they're likely to have misconceptions from cultural osmosis.
2. If you have read the source, feel free to share whether the common knowledge is accurate, a common misconception, or the first time you've seen it interpreted that way.
3. If it was a video game, classical music, or other non-book that influenced you, those are also welcome.

Some answers from asking a similar question elsewhere

• Marx
• The Bible
• F.A. Hayek
• Aristotle
• Milton Friedman
• Socrates
• Plato

I'll post my answer as a comment to give it equal weight to the others.

Spoiler warning for Dawnshard and previous Stormlight Archive books (Way of Kings, Words of Radiance, Edgedancer, & Oathbringer).

I'd seen mentions of the sleepless and Dawnshards when browsing the Arcanum and so was primarily hoping to learn more about these in this book. But in a short period of time I was surprised with how attached I grew to Rysn! In particular at the end of the book when the captain appreciates Rysn's role as Rebsk and allow here to steer the ship (showing their trust) for a few minutes, I let out an audible cheer. (Also when I noticed that she gained perfect pitch and perfect color recognition) Rysn and Vstim's interludes in the previous stormlight books were some of my favourite interludes and I'm so glad that we got to see more of them here.

The other thing I was surprised by was the set up for the two Winderunners swearing their third ideal here. Lopen says quite clearly that the third ideal is saying that you will protect even those you hate. And then a few chapters later we see Huio swear the third ideal in order to protect Lopen. I honestly thought this was just going to be played off as a joke since they have a fair bit of banter early in the book. But I was heart warmed to see that realisation that Lopen has that his jokes and teasing hurt people, and him swearing his own version of the ideal to protect other people from himself. It reminded me of some of the similar (but not same) character development moments we get with Wayne in Mistborn.

I'd love to hear what other people who read this book thought about it as well. Once I can get my hands on Yumi and the Nightmare Painter in paperback form, I hope to discuss that too with all you Cosmerenauts!