Entities/Entity

I've found this (for me, native tongue swedish) rather peculiar noun, and I can't get hold of it, here, in this context (novel analysis): "THINGS: What objects, entities, and activities are important in the story?"

What is it supposed to mean here?

source: http://summerinbooklyn.blogspot.se/2012/08/five-facts-of-fiction.html

"Entities" in that language means "beings who appear in the story". If you're writing fiction, your "entities" should be living beings who interact with the characters in some way. "Entities" could be spirits, monsters, magical creatures, gods, etc. I suspect the writer used "entities" to discuss characters who weren't human, but humans are also "entities."