This is what is known as causation. Many events appear to be the results brought about by identifiable causes, and the human mind is geared to look for these cause/effect relationships. We get into trouble when the mind seeks or creates an artificial cause/effect relationship that doesn't actually exist.
Copy means written words or text of any kind in various genres. Ad copy means text written specifically to sell something. Body copy refers to text that is in the middle or main part of a piece of writing. Sometimes it's easier to define something by what it isn't.
copy. 1  an imitation, reproduction, or transcript of an original: a copy of a famous painting. 2  one of the various examples or specimens of the same book, engraving, or the like. 3  written matter intended to be reproduced in printed form: The editor sent the copy for the next issue to the printer.