The image of the "copper sun" itself can be considered a metaphor for the scorching heat and relentless oppression experienced by the characters in the novel.
The "heart of darkness" can symbolize the brutal and dehumanizing nature of the slave trade.
The "chains of bondage" can represent the physical and emotional constraints that the enslaved characters endure.
The "river of tears" can allude to the suffering and sorrow that the characters face throughout their journey.
The "whip of injustice" can symbolize the violence and cruelty inflicted upon the enslaved individuals by their oppressors.
