Explain the transformation of the Buti Wada into the Samadhi Mandir, citing the key events and commands.

The building known as the Buti Wada was originally intended by its owner, Bapusaheb Buti, to be a temple housing an idol of Murlidhar in its central hall. Chapter 39 explains that Buti sought and received Sai Baba's enthusiastic permission for this project. Construction began on the inner sanctum and a platform for the deity. However, events took an unexpected turn when Baba fell gravely ill. The pivotal moment came with Baba's final words: "Place me in the mansion." This command from Baba himself repurposed the structure. Following his Mahasamadhi, his holy body was placed in the very inner sanctum built for Murlidhar, thus transforming the mansion into the revered Samadhi Mandir.