Based on the philosophical teachings in the Sai Satcharita, what is the fundamental cause of suffering and the cycle of rebirth, and what is the prescribed path to liberation?

The philosophical teachings presented in Chapter 14 identify the root cause of suffering and the cycle of birth and death as the intellect that establishes duality. This is considered pure ignorance, where one perceives a separation between oneself and the rest of the universe. To achieve liberation, Chapter 14 prescribes turning away from this ignorance through the Guru's teachings, which purify the mind. The path involves surrendering to the single Essence that pervades all, understanding that from Brahma to a blade of grass, everything is Brahman. By completely abandoning duality, one attains a state of non-duality and becomes peaceful.