Can you summarize the main themes of Chapter 33, from the greatness of the Guru to the glory of Udi?

Chapter 33 of the Shri Sai Satcharita opens by bowing to the assembly of saints, highlighting the greatness of the Guru (Guru Garimaa), whose glance can purify sins. It then transitions to its primary focus: the glory of Udi. The chapter narrates Baba's practice of maintaining the Dhuni fire with logs of wood and distributing the resulting sacred ash. The core teaching presented is the profound symbolism of the Udi. Baba used it to teach that the physical body and the entire visible universe are transient and will ultimately turn to ash. This served as a constant reminder to distinguish between the illusory nature of the world (Maya) and the ultimate, unchanging reality of Brahman.