According to Chapter 4, what specific societal and religious failures necessitate the incarnation of a saint?

Chapter 4 details several specific conditions that prompt a saint's incarnation. It describes a time when Brahmins despise their own caste, religious teachers are insulted, and sectarian hatred grows. Widespread moral decline is also a key factor, such as when people ignore proper conduct, even Brahmins openly consume liquor and meat, and atrocities are committed under the cloak of religion. The chapter also states that when religious practitioners themselves, including Brahmins, ritualists, and Yogis, grow tired of their daily prayers, ceremonies, and meditation, it is a clear sign that the time for a saint’s incarnation has arrived to restore order and faith.