How is Shri Sai Baba's nature and daily life described in the sacred texts?

According to the Shri Sai Satcharitra, Sai Baba's life and actions are described as incomprehensible, marvelous, and profound. Chapter 37 explains that His state is unpredictable; He is sometimes intoxicated with the bliss of the Self (Brahmananda), and at other times, He performs actions while remaining completely detached. He maintained a vow of celibacy, treating all men as His brothers and women as His sisters or mothers. The text emphasizes that He was always alert in His true form, with His mind fixed on Self-realization, even when appearing inactive.