Heart of Darkness - An Allegory?

Heart of Darkness is in its entirety not an allegory. Its surface is too profound and meaningful to allow itself to be interpreted in more than two ways. There are however several parts in the novel that hint at the opposite and that prove that the context of the novel can be seen from more than one angle.
This can mainly be perceived in the life of Mr. Kurtz, as his descent into madness can be seen as an allegory for the colonization and destruction of the African continent and its people by the Europeans. Because just as Kurtz was a perfectly sane and normal man before he went into the…