Absolutely nothing.
Here goes for flooding the forum.
Thanks for reading.
I looked through the looking glass
Hoping to find adventure
For everyone knows that the best revelations
Always come through looking glasses.
And I stared and I glared
And squinted and grimaced
Until I gave up
And decided there was nothing but empty paper underneath.
What a relief.
Spoiler
Okay.. so the meaning behind this is that people often try to look into things and find something where there truly isn't anything. When they realize that they're reading into something a bit too much, it can be quite relieving. I don't know if it makes sense to anyone else, but it does to me. 
