Conrad uses imagery a great deal in this work of literature. It is used to describe the environment or situations that are presented to the men in Africa such as, right before Kayerts hung himself on the cross Conrad writes,
…the fog rolled low over his head. He looked round like a man who has lost his way; and he saw a dark smudge, a cross-shaped stain, upon the shifting purity of the mist. As he began to stumble towards it, the station bell rang in a tumultuous peal its answer to the impatient clamour of the steamer.(16)
This is an example of how imagery can make a story much more interesting, realistic and alluring. The theme presented in the story is a slow regression of civilized Europeans into savages in Africa. Kayerts and Carlier began their African adventure being sheltered from what was really going on. As the time passes, the two men lose their sense of civilization and start to turn on one another like savages would do. Also, the white man is supposed to be more glorified than the Africans are, but it