Mad Song
by William Blake
The wild winds weep,
And the night is a-cold;
Come hither, Sleep,
And my griefs infold:
But lo! the morning peeps
Over the eastern steeps,
And the rustling birds of dawn
The earth do scorn.
But lo(behold)! the morning peeps(starts) 
 The Morning is interrupting his attempts at sleep. He has been up all night surviving his grievances when the Sun rise ruins his chances of getting sleep or relief.
Mad Song