Answer:
To clarify the speakers argument
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.
From the original task to reading for information.
Answer:
The audiences location
Explanation: If they are in a different location from the presenter then it is an online presentation.