Can you elaborate on the incident mentioned in Chapter 43 where people mistakenly thought Sai Baba had already died once before?

Certainly. Chapter 43 recounts a specific and startling event from the past. In this incident, Sai Baba raised his life breath to the crown of his head, or Brahmarandhra, and remained in this state for three full days. People with certain minds, observing this, concluded that it was not a state of Samadhi but death itself. Consequently, they began making preparations for his final rites. As detailed in Chapter 43, their preparations were cut short when Baba suddenly returned to his body, leaving everyone completely startled in their hearts.