In the introduction of Chapter 53, what invocation is made and what promise from a previous chapter is referenced?

The introduction of Chapter 53 begins with a traditional invocation, offering salutations to Shri Ganesh, Shri Saraswati, the Guru, the Family Deity, Shri Sita-Ramachandra, and Shri Sadguru Sainath. It praises Shri Sai as the personification of Brahman and the Sovereign Emperor of Saints. Following this invocation, the chapter immediately references a promise made by Hemadpant in the previous chapter: 'First I will look back (review), then provide the summary, and thus complete the book.' The chapter then proceeds to explain why this promise was not fulfilled by the original author.