According to Chapter 4 of the Sai Satcharitra, what are the specific societal conditions that signal the need for a saint's incarnation?

Chapter 4 of the Sai Satcharitra details the societal decay that necessitates a saint's incarnation. This includes a time when Brahmins despise their own caste and Shudras try to become Brahmins, when religious teachers are insulted, and when people ignore the words of religion, with everyone considering themselves a scholar. The text further explains that saints appear when people become obsessed with worldly happiness from wealth, status, and family, turning away from the ultimate goal. As mentioned in this chapter, saints incarnate to reawaken religion when it has decayed.