Chapter 43 mentions several significant events related to Sai Baba's Samadhi. Can you describe them?

Chapter 43 of the Shri Sai Satcharitra details multiple occurrences connected to Sai Baba's final days and his Samadhi. It promises to narrate how the planning for the Samadhi tomb itself occurred. The chapter also specifically mentions an event referred to as the unseen 'fall of the brick' and its connection to the planning for the Samadhi's location. Furthermore, it recounts a fascinating past incident where Baba raised his life breath to the crown of his head for three full days, leading devotees to believe he had died. They even began preparations for final rites, only to be startled when Baba suddenly returned to his body.