What does Chapter 52 say about the path from worshipping Sai's form (Saguna) to understanding the formless (Nirguna)?

Chapter 52 explains the progression from Saguna (with form) worship to realizing the Nirguna (formless) Self. It posits that meditating intensely on Sai's physical form is a crucial first step. Through this practice, the "subtle nature of the Self will manifest as the Saguna (form) vanishes." The chapter explicitly states that without first entering the Saguna form, the light of the Self, or the formless Parabrahma, is "entirely difficult to understand." Therefore, focusing on Sai's tangible form provides a pathway for devotees to grasp the abstract, attributeless reality. Sai himself is described as having shown his feet and, through love, mysteriously leading His devotees towards this supreme goal of liberation.