Could this mean "I eat this chocolate" as well?
Technically it can but I think you would use hwn instead of yma
Sorry, i didn't quite understand, do you mean you would use hwn instead of yma here to mean "this chocolate"?
Yeah, sorry. I've updated it now
Ok, but why the "yma"?
Apparently it also means "here".
It's main use is here. You wouldn't really use yma for anything other than here. There may be special cases though