A leader must be physically, emotionally, mentally, and spiritually fit to strengthen resilience. Positive energy is essential when leading a large organization or a small team. Optimism and enthusiasm are two key traits of a resilient person. Like any other trait, they must be exercised to become a strong part of one's makeup. The last thing is resilience. Anyone who has ever led anything will tell you that at some point in time, the organization you lead will face adversity.