After speaking to the kid on the beach, the speaker feels free and happy. The child played with shells and he' hired' the speaker for nothing. This showed he didn't want the speaker to do any job. In turn, he offered nothing but happiness and cheer. This deal brought him what he couldn't find with the king, the ancient man, or the good maid. This was because everything goes away from authority, money, and beauty, but happiness is something that remains and does not cost either. Happiness is every human being's real asset. Power, money, and beauty can't afford eternal happiness. Therefore, the speaker was not bound by any terms or circumstances with the kid. Therefore, after hitting that deal with the kid, he felt free.