Why is a first person narrative of an enslaved person valuable

It would be the most truthful and accurate first hand account. It’s kind of why holocaust survivors are/were some of the most important and valuable people to listen to and learn from because they were actually there. It’s not history to then, it’s their life. It’s their childhood. It’s the way they grew up and to learn first hand from those who lived through horrific past events is vital in protecting our future.