What is the meaning of the last paragraph in Gift of Magi?

The magi were three wise men who brought gifts to Jesus. These men created the gift of giving on Christmas and the gifts they brought Jesus were the wisest of all. O' Henry presented us with a story of two foolish, unwise but loving, caring people who sacrificed their greatest treasures for each other which both rendered useless. From giving gifts to receiving gifts, the magi are the wisest.