Can you explain the incident mentioned in Chapter 43 where people mistakenly thought Sai Baba had died before his actual passing?

Chapter 43 recounts a remarkable past event to be detailed later, where Sai Baba had once raised his life breath to the crown of his head, or Brahmarandhra, for three consecutive days. During this period, he appeared lifeless, leading people with certain minds to conclude that it was not a state of Samadhi but death itself. As described in the chapter's preview, they even made preparations for his final rites. However, Baba suddenly returned to his body, which left the people startled in their hearts.