Based on the provided text, how is the grace of Sai Baba described and what are its effects?

According to Chapter 47, the grace of Shri Sai is depicted as profoundly transformative and a source of supreme bliss. His holy face is said to destroy the sorrows of infinite births upon a single glance. The text emphasizes that Sai's merciful glance can instantly liberate devotees from the bonds of Karma, allowing them to attain the nourishment of self-bliss without delay. This grace is compared to the sun, whose light is so powerful that the 'firefly of worldly existence' loses its luster and hides. Essentially, as Chapter 47 illustrates, being in the presence of Sai's grace causes the complex problems of actions and non-actions to vanish completely.