I have to admit I prefer his worldly writings to the divine ones which all seem incredibly grim: lots of purging and burning and dying. And so, if you don't mind, I'm going with one of the non-religious poems to celebrate this feast day. It's much more festive that way.
BREAK OF DAY.
STAY, O sweet, and do not rise ;
The light that shines comes from thine eyes ;
The day breaks not, it is my heart,
Because that you and I must part.
Stay, or else my joys will die,
And perish in their infancy.