When I open a book, I read the words which are written on the page. My brain considers each word and how they relate to each other.
For instance, consider 'There was a beach. It was wet' as an example.
Now, from this I know that there is a beach. I have seen beaches on TV. Also, I have been to a beach before in real life. So I understand what a beach is and how they look.
Of course they differ, depending on the individual beach, but I know that it is most likely that the author intended for their work to be interpreted to include an image with sand and the sea. Unless it's described as a rock beach.
However, with the information we have, it's fair to assume that it is the sandy variety as this is the most common understanding of a beach.
We also know that the beach is wet. I have seen what wet sand looks like. So I can combine this information to create an image of the beach in my mind's eye.
Now, I am quite a visual thinker. I often create visual images in my mind without meaning to do so. My thoughts are like a narrated movie. When I read a book, it's basically the same as sitting down to watch a film for me.
For some people, they may only see the image visually. However, I am also able to recall touch sensations and sometimes if I can emotionally connect with a character, then I also feel afraid as if I'm the one going face first into battle instead of the character.
Regarding the question about deception - this is where suspension of disbelief comes in to play. When I sit down to read a book of fiction, I know it isn't real. By labelling it fiction, the author has said 'Hey, nothing in this book is real. This is supposed to be a fun work of hypothetical scenarios which didn't actually happen and this is purely for entertainment purposes'.
You go in to this book with this knowledge. It would be dishonest if the author had claimed the events to be true when they are not. However, the author has told you that nothing is real right from the start.
So how do you make a reader care about something that isn't real? You invoke their sense of curiosity. Make them wonder what you're going to write next so they continue reading the story. Your reader may know that some of the contents of your book simply isn't possible, such as magic, but they accept that the rules of this made up universe differ from our own. So long as you follow the rules you have established in your own story, the reader will allow it in favour of satisfying their curiosity to find out what happens next.
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25. Near the spectrum but not on it.