The light...
and sometimes, when you've given and poured and worked and sunk every ounce of yourself out, and you're tired, you just need a sign. It doesn't have to be big, or glorious, or all-encompassing; it doesn't have to make the sun shine brighter, or fix the world (and you know by now, don't you? That the world isn't getting fixed? That this is Earth, not heaven?)
It just has to remind you that you can, that you will, that something has gone your way and more will come, and that a lot is already here. Because you have so much to begin with; sometimes, you just need reminding.