According to Chapter 4 of Sai Satcharitra, what circumstances on Earth necessitate the incarnation of a saint?

Chapter 4 of the Shri Sai Satcharitra explains that a saint's incarnation becomes necessary during times of significant social and religious decay. This occurs when people lose their way, focusing only on worldly happiness from wealth, status, and family, while turning away from the ultimate spiritual goal. The text specifies conditions such as Brahmins despising their own caste, religious teachers being insulted, and sectarian hatred growing. When people lose their chance for ultimate well-being due to this decay of religion, saints descend to this earth to awaken faith and protect the humble, poor, and weak.