Confidence
“I’m glad you’ve found out. It makes you ever so much more of a hero. Don’t you see that? Now you know that it was you who killed all these dragons and not that foolish little word” (p.6) this is the Headmaster’s response to Gawaine’s discovery of the fact that his “magic word” held no power. The Headmaster had meant for this to give him confidence, but the knowledge that it was he all along who killed the dragons actually served to make Gawaine doubtful and fearful, two emotions not present when he believed in the magic word Rumplesnitz.
This quote hints at an interesting thought in the story; how Gawaine putting all his expectations and worries would have made it easier for him to accept failure than if he had only himself to blame for his mistakes. Though one would think that after killing a dragon without the use of the magic word, Gawaine would regain some confidence of his own. But the whole experience made him realize his vulnerability, something that frightened him greatly. As was hinted at in the beginning- when the author says that Gawaine does not hold promise- when the headmaster forces him to return to the forest to battle a much smaller dragon, his wits and confidence fail him, and he is eaten.
CONCLUSION: this story shows the fragility of peoples self-images; people have more confidence someone or thing is responsible, rather than being sure enough of themselves to succeed.