What specific societal conditions described in Chapter 4 signal the need for a saint's advent?

Chapter 4 provides a detailed list of societal problems that necessitate a saint's incarnation. These conditions include when Brahmins despise their own caste and Shudras attempt to become Brahmins, when religious teachers are insulted, and when everyone considers themselves a scholar without respecting others. The text also mentions a decline in moral conduct, such as when people ignore what should be eaten, when Brahmins openly consume liquor and meat, and when sectarian hatred grows. A saint's arrival is also heralded when yogis and priests grow tired of their spiritual practices, signaling a deep-seated spiritual fatigue.