<u>Rhetoric,</u>if you are on apex, I hope that this is helpful.
The word Rhetoric means using the art of using language persuasively, and in order to convince someone you have to persuade them to do it, hence using language persuasively.
By saying that the two locks of hair conspired to do something, the author is attributing a characteristic of human nature to the locks of hair which on fact are non living (or human) entities