Even though we live in an era of unprecedented materialism and economic prosperity, depression is reaching epidemic levels. The World Health Organization predicts that depression will be the second most debilitating disease in the developed world by 2020. In other words, material wealth does not equal happiness.
In the beginning of the novel, it is evident that Raskolnikov is deep in dept and struggling to survive. He feels embarrassed to see others and he feels just like the picture as if he is drowning in darkness. Nobody there to save him. All alone.