When you read a book, the neurons in your brain fire overtime deciding what the characters are wearing, how they're standing, and what it feels like the first time they kiss. The words make suggestions, your brain paints the picture"
I'm only responsible for what I say, not for what you understand. Although as an author I am responsible for making readers understand--a reader who doesn't understand is an unhappy reader. (And there is some value to leaving some questions unanswered.