Well, using my limited knowledge, "cleaving" means to chop, break in half, split, etc. Twain means twice. So, perhaps it's like "you've broke my heart in half", something along those lines? hopefully this helps you.
Answer:
How the language is used.
Explanation:
You need to be more specific when asking questions like this. First of all, you should copy the second paragraph of whatever you are reading. After doing that, you will be able to get a suitable answer for your question.
My guess would be imagery, as hearing is one of the 5 senses:)
