Final answer:
The quote describes the appalling conditions and suffering endured by enslaved Africans during the Middle Passage of the transatlantic slave trade.
Step-by-step explanation:
The excerpt from The Interesting Narrative of the Life of Olaudah Equiano, describes the horrific conditions aboard a slave ship during the Middle Passage. Equiano vividly recounts the unbearable stench, crowded living quarters, and the immense suffering of those on board. This journey was one where enslaved Africans were forcibly transported across the Atlantic Ocean to the Americas. The quote details the human suffering endured: the closeness and heat that suffocated individuals, the diseases that rapidly spread due to poor conditions, and the brutal treatment by the crew.