Can you describe the specific signs of societal decline that, according to Chapter 4, signal the need for a saint's incarnation?

Chapter 4 details several specific signs of a world in distress that prompts a saint's advent. These include when Brahmins despise their own caste and Shudras attempt to become Brahmins, when religious teachers are insulted, and when people generally disregard religious teachings, with everyone considering themselves a scholar. Further signs mentioned in Chapter 4 are the growth of sectarian hatred, Brahmins neglecting their daily prayers, and even the open consumption of liquor and meat under the guise of religion. When people become obsessed with lust and hunger, losing sight of self-upliftment, the time is ripe for a saint's incarnation.