"Man's sin is in his failure to live what he is. Being the master of the earth, man forgets that he is the servant of God"

This quote by Abraham Joshua Heschel talks to the idea that humans are typically too focused on their own power and control over the world, and forget that they are eventually servants of God. He recommends that when people stop working to recognize this, they are committing a sin. This is since they are not measuring up to their real capacity as souls, and instead are concentrating on their own power and control. This quote is a tip that human beings must aim to live in accordance with their spiritual nature, and acknowledge that they are ultimately servants of God. It is a pointer that people should not be too focused on their own power and control, however rather ought to aim to live in accordance with their spiritual nature. By doing so, they can prevent the sin of forgetting their true purpose and capacity.