How to add a blank line/return!

So simple, it would seem, and yet I can't find a way to do this in adobe acrobat!

All I want to do is stick a blank line in the pdf, a return. At the moment the text reads like this?

"jskdbvjkls\bvj\s

skjfdbvjkashbvgkj

askjfnvlkasjnvskjdn"

akfgnvlkasfdnvgkangfdhnsdfgnsfgmnsfmjndfhmjdgfhmjgfhm

I would like it to read like this:

"jskdbvjkls\bvj\s

skjfdbvjkashbvgkj

askjfnvlkasjnvskjdn"

akfgnvlkasfdnvgkangfhmxfhgmnxfhmxgfhmgfxhmghmghm

The narrow text is a poem (in the middle of some prose) and I'd like there to be a space between the end of the poem and the start of the explanation. However, they each seem to be inside different boxes(?) and if I press return to create a blank line, the last line of the poem overlaps with the first line of the prose. I've struggled with this for ages, but can't find a way to do it. Can somebody set me free from this incredibly annoying frustration?