The quote "Death is lighter than a feather. Duty, heavier than a mountain" from Robert Jordan's book "The Eye of the World" reflects the philosophical struggle between the inevitability of death and the weight of responsibility. It suggests that while death is an inherent part of life that carries little burden, the obligations one has can feel overwhelmingly heavy, akin to carrying a mountain. This dichotomy highlights the human experience of grappling with responsibilities while recognizing the eventuality of mortality.

This perspective emphasizes that life’s responsibilities can often feel more daunting than the ultimate fate that awaits everyone. In the context of the narrative, characters may face life-altering decisions and burdens that challenge their resolve, showcasing the idea that duty often demands immense sacrifice. The quote serves as a powerful reminder of the emotional and psychological weight carried by individuals as they navigate their paths amidst life's transient nature.