Good Luck Before A Big Day
I know for exams, if you accidentally break a utensil or a plate on the day before a really big day, then you’re going to succeed. I guess it’s following the idea that you lose something then you gain something. But it has to be broken on accident, not on purpose.
The idea truly follows the logic that when one loses something one also gains something else. The broken object signifies the loss. It is also similar to the idea that the storm must come before the calm, or one must get through the night before it becomes day. Nothing comes free in this world and to gain is ultimately to lose.