Analysis of To James Y. Simpson

Oh teeming heart, that, for this once, in vain
Big with our good, didst undeliver'd die,
Had some god got thee with a progeny
O'er-great, that, born, might even dispute the reign
Of Death, as Death had seen the realms of Pain
Won by thine elder brood? We marvell'd why,
So seeming-careless of his sovereignty,
He spared and spared thee: doth this day explain
The Fabian greed that grudged a needless blow?
Knowing too well what deity possest
Thee, did the dead-eyed strategist foreknow
How the huge god must choke the mortal breast?
The mortal breast, deep under clod and sod,
Out of the half-saved world drag down the abortive god?