No More Learning

When I reflect and turn me to that part
Whence my sweet lady beam'd in purest light,
And in my inmost thought remains that light
Which burns me and consumes in every part,
I, who yet dread lest from my heart it part
And see at hand the end of this my light,
Go lonely, like a man deprived of light,
          where to go; whence to depart.