How does Sai use the analogy of a broken pot to reframe the concept of death and nothingness?

In Chapter 37, Sai uses a philosophical analogy to explain that death is not an end in nothingness. When a pot is broken, only its form is destroyed; the underlying 'pot-existence' is not lost and remains even in the broken pieces. This illustrates that the dissolution of an effect, like the passing of a body, occurs by taking refuge in its existence. The effect is never separate from its cause. Therefore, the passing of someone's body does not end in nothingness, which helps to alleviate the fear associated with annihilation.