The quote from Peter S. Beagle's "The Last Unicorn" reflects the idea that when one tries to hide their true self, they may miss out on genuine achievements and experiences. In the context of visiting a fair dressed in disguise, the characters find that their efforts do not lead to any triumphs in competitive games like archery or singlestick. Instead, they receive superficial praise that does not fulfill their deeper desires for success and recognition.
This sentiment emphasizes the theme of authenticity versus pretense. While the characters may receive compliments on their disguises, these external validations do not equate to real accomplishments. Ultimately, the message suggests that embracing one’s true identity is more rewarding than attempting to conform to expectations or societal norms through disguise.