Can you summarize the defining qualities of a Sadguru and their environment as outlined in Chapter 48?

Chapter 48 of the Sai Satcharitra provides a comprehensive summary of a true Sadguru's characteristics. A Sadguru is defined not just by their knowledge, but by their ability to grant direct, full experience. Their nature is one of profound humility, free from the pride of scholarship and the egoism that creates a hierarchy between guru and disciple. They are selfless, willing to sacrifice for the disciple rather than expect service, and treat everyone as equals. Consequently, the chapter describes the "place of a Sadguru" as a "storehouse of supreme peace," an environment reflecting these core qualities of equality, humility, and genuine experiential wisdom.