After circular arguments about the meaning of Owl City's 'Fireflies', so instead of seeming to care a BIT too much about these things, I will explain.
It's about 'Owl City's (see the nifty use of an apostrophe as a speech mark) trying to escape back to his innocence, hence the room full of toys in the video.
"I'd like to make myself believe
that planet Earth turns slowly"
Time goes too quickly, and poor 'city' is losing faith.
"Its hard to say that I'd rather stay awake when I'm asleep"
Kids don't like lie-ins, and constantly want to stay awake. Don't challenge my authority!!!
"To ten million fireflies
I'm weird 'cause i hate goodbyes
i got misty eyes as they said farewell
but ill know where several are
if my dreams get real bizarre
'cause i saved a few and i keep them in a jar"
Try to remember your childhood.