According to the teachings in Chapter 19, what is the ultimate purpose of human birth?

Chapter 19 of the Shri Sai Satcharitra clearly states that the fulfillment of the soul and the ultimate duty of a human birth is the attainment of the Supreme Self, which brings eternity, fearlessness, liberation, and independence. The text emphasizes that this liberation is not possible without knowledge. Furthermore, knowledge itself cannot be attained without detachment, which arises from the crucial understanding that the world is transient. Thus, the purpose of life is to progress through these stages to achieve self-realization.