His Heart was darker than the starless night — Black Slave

His Heart was darker than the starless night
For that there is a morn
But in this black Receptacle
Can be no Bode of Dawn
(F.1402/J.1378)
[1] His Heart, darker:: a black slave's heart, hinted in line three.
[2] morn:: a new bright beginning.
[3] black Receptacle:: a cabin for the black slave as in Uncle Tom's Cabin (1852) by Harriet Beecher Stowe.
[4] no, Dawn:: no future for slaves.