Misfortune depends on happiness, and happiness depends on misfortune, which means that happiness and misfortune are not absolute. They are interdependent and mutually transformed. Metaphor bad things can lead to good results, and good things can also lead to bad results.

The source of Laozi, Chapter 58: "Misfortune is the place to lean on, and fortune is the place where misfortune lies."

"Misfortune is where fortune lies, and fortune is where misfortune lies." This statement has a certain connotation of dialectical thought, because dialectical materialism (hereinafter called materialist dialectics) usually talks about "contradiction" ("unity of opposites"), and Lao Tzu said: "The misfortune is blessed, and the blessing is hidden." What we are talking about is contradiction, and it is also the contradiction of unity of opposites. "Misfortune" makes people sad, while "fortune" makes people happy, so there is a contradiction between "misfortune" and "fortune". However, "misfortune" may make people learn lessons and produce "happiness", and "happiness" may cause people to be extremely sad and produce "misfortune", so "misfortune" and "happiness" are a unified contradiction.