there's this part halfway through the song where sufjan has this great line that I think enunciates that love is not one of the only things not compounded in sorrow. which is a complicated formulation but means what it says — that love comes with these feelings, too. i don't know, it makes my heart cry in a familiar, comforting way.
so you are tired as the sun! which we may remember, even the sun takes relief every day from its work making light from the night, so there is no shame. but there is a sadness in a repetition gone awry; there's a poignancy, and he breaks himself down one step further:
which I reflect on with "i have kissed your lips like a judas in heat" — what is it to be discarded by the sun? what is it to recognize the thing you have — as much as all you have is what you are and what you give — the thing that you give, the identification, the intimacy, too can be forgotten? maybe the man you love has a date with destiny and all you have is the useless silver of loving him in the wrong place and time.