What is the primary focus and introduction of Chapter 42 of the Sai Satcharitra?

Chapter 42 begins with salutations to various deities and praises Sai Baba as a wish-fulfilling tree for devotees, one who helps them cross the river of worldly existence. After recapping previous stories about a protected portrait and a dream, the chapter explains that by the Guru's grace, the fear of worldly existence is removed and unhappiness turns to happiness. As stated in Chapter 42, its main purpose is to describe Sai's nature and, most significantly, to provide an attentive account of Baba leaving his physical body.