[Oldpilot]

The mobi pagebreak is now deprecated, and we are urged instead to use CSS. Here is mine:

p.breakhere {
page-break-before: always
}

Then in the text, <p class="breakhere">

The html tag for a left double quote is &ldquo; (which can be easily adapted for right double quote or left or right single quote).

If what the OP wanted is a blank line, that is difficult to achieve across all Kindle apps unless one does this: <p>&nbsp;<br /></p>

I think it's a mistake to get too fancy with Kindle formatting, for example by trying to create text diagrams.

Hope that helps!