psychological significance of journey

In Joseph Conrad's story, Heart of Darkness, the main character Marlow not only goes through a journey physically but mentally. His prejudices about Africans are prevalent in the things he says; however, Marlow demonstrates the ability to change through his recognition of right from wrong. Towards the beginning of the story he refers to the continent of Africa as a “God-forsaken wilderness.” Even though he voices his racist or ignorant opinion often, Marlow appears to be more ethical than his peers. For example, he shows sympathy towards the natives being mistreated by the settlers which means he has a strong moral code. Since Marlow is still battling his early prejudices against his morals, he still has a long journey to go before he can become enlightened.