The first household tale in the Grimm's collection from the 19th:
Loyalty.
All the BOOMS heard at the end of the story, when the Prince is saved and everything is alright, are from the bands of iron which had encircled the Prince's loyal servants heart, breaking, as his heart became free.
The story is named after the loyal driver. And also after the Frog who transformed to a beautiful Prince.
So the Booms are our hearts being freed after our loyalty is re-paid, our trust well well - founded and our Leaders delivered from the magic spell of the evil witch.
Kek https:// www.grimmstories.com/en/grimm_fairy-tales/the_frog_king_or_iron_henry