By metaphorically comparing the vastness and sparsity of the natural web, the deep meaning of the idiom 'the net of heaven is vast, sparse but not leaking' is explained. It points out that although the law may appear lenient, it will ultimately not spare any guilty person, emphasizing the fairness and comprehensiveness of the law. At the same time, citing the content of Laozi further emphasizes the irresistible nature of natural laws and the universal applicability of laws, to warn those who may violate the law.