You've Got Time Lyrics

Lyric discussion by CrushedOrange 

Cover art for You've Got Time lyrics by Regina Spektor

I believe the line is actually “searching on the ground for a bit of sun”, referring to how prisoners are kept inside the majority of the time, and only have small opportunities to catch sunlight through the barred windows.

This song is definitely about being in prison (though of course you may take from it what you will). It was written specifically to be the theme for Orange is the New Black, rather than being adapted for it.

My Interpretation

I agree that it's “... a bit of sun”. There's sort-of a dominoes structure of the first verse, where a word uttered in the last part of one line is repeated at the top of the next line:

e> Trapped, trapped, trapped 'till the cage is full The cage is full / stay awake

and then:

and then:

Searching the ground for a bit of sun The sun is out, the day is new

And once, between the above two instances, the opposite word is placed in the same way, thus:

In the dark, count mistakes The light was off but now it's on

[clever...

Also, I'm wondering about the ambiguity of using the word "on" after "waiting". When you're awaiting someone, you're waiting FOR them. Waiting ON someone means (to me) that you're serving them. If this is the intention, I'd say she's being just a wee bit sardonic.