Step 1: Understanding the Concept:
The theme of "The Rattrap" is that the essential goodness in a human can be awakened through understanding and love.
Step 2: Detailed Explanation:
The peddler lived a life of petty thievery and saw the world as a giant rattrap.
He was initially treated with suspicion by the ironmaster, but Edla treated him with dignity.
Even after learning he was a vagabond and not a Captain, Edla insisted on letting him stay and enjoy Christmas.
This high level of trust and respect—being treated as if he were a real Captain—awakened his conscience.
He left the stolen money to be returned and signed his letter as "Captain von Stahle," symbolizing his transformation.
Step 3: Final Answer:
Edla’s compassion transformed him from a thief into a man of honor.