Did Sai Baba give formal lectures on scriptures like the Upanishads during his sittings?

No, Maharaj did not give formal lectures or open discourses on profound Vedanta subjects or the Upanishads. As Chapter 0 clarifies, his teaching method was different. He imparted wisdom through stories during his three daily sittings. This advice was primarily ethical, designed to purify the disciple's mind and heart. This approach aligns with the Sadguru's practice of preparing the ground before sowing the seed of higher knowledge, making his teachings accessible and transformative for the diverse group of people present.