Whate'er is born of mortal birth
Must be consumed with the earth,
To rise from generation free:
Then what have I to do with thee?
The sexes sprung from shame and pride,
Blowed in the morn, in evening died;
But mercy changed death into sleep;
Blake dissociates himself from the physical world in this line. It is a  rhetorical question , but the implication is negative; as if the poet is hoping for the answer ‘no and is seeking instead something beyond the physical.
To Tirzah