What is the real reason for the impression in the smallest Dragon boy?

In "The Smallest Dragon Boy" by Anne McCaffrey, the impression made by the protagonist, a young boy named Keevan, highlights themes of perseverance and the importance of inner strength. Despite his small stature and the doubts of others, Keevan's unwavering determination and strong bond with the dragon, Little, demonstrate that true worth is not defined by physical attributes. The story ultimately conveys that courage and resilience can lead to unexpected and profound connections, regardless of societal expectations.