What do race power and ideas of the primitive have to do with the way Marlow understands and tells

On pages 144-146 of Heart of Darkness, Marlow struggles to explain why the hungry Africans do not kill and eat the whites on the boat. Use a few quoted details to discuss the weird doubleness of this moment in Marlow’s narration. What do race, power and ideas of the primitive have to do with the way Marlow understands and tell about this situation on the boat? 300 words