The protagonist struggles with recurring bouts of depression that have significantly impacted his adult life. This ongoing shadow looms over him, suggesting a deep-seated battle with mental health issues that permeate his existence.
As he faces the impending darkness once more, it highlights the cyclical nature of his condition, reflecting the broader themes of personal struggle and the challenges of maintaining one's mental well-being amidst external pressures and societal expectations during a transformative period in American history.