Take a simple concept (humorous, philosophical, anything) and rewrite it into something ridiculously complicated. Here's one I came up with:
To hallucinate, stay up for days on end.
BECOMES
To taste the shift of truth to dream, sustain the switch of dim and gleam.
The new sentence is perfectly symmetrical, it rhymes, and it's meaning can be interpreted many different ways.
It's a fun exercise to boost your creative ability. See what you can come up with.
Edited to rhyme.