According to Chapter 4, what specific signs of societal decline prompt a saint's incarnation?

Chapter 4 of the Sai Satcharitra provides a detailed list of societal and religious degradations that signal the need for a saint's incarnation. The text mentions specific signs such as Brahmins despising their own stage of life and caste, religious teachers being insulted, and people generally ignoring the words of religion. It further elaborates that saints appear when people compete with one another without respect, when Brahmins openly consume liquor and meat, and when sectarian hatred causes widespread distress. As Chapter 4 explains, these conditions represent a decay of religion, which saints come to awaken and restore.