How did Sai Baba attend Dev's Udyapan ceremony without physically leaving Shirdi?

According to the events described in Chapter 40, Sai Baba attended Dev's Udyapan ceremony by appearing in a different form. Although he did not physically travel from Shirdi in the worldly sense, he kept his promise to Dev by arriving in the guise of a Sanyasi. Baba explained this himself, stating, "In the worldly sense, I did not move from here; but I came and ate at the Udyapan." He first appeared alone as the Sanyasi and was told to return for the meal. He then returned with two other companions to eat, precisely fulfilling his earlier word to Dev that he would come with two others. This illustrates Baba's omnipresence and his unique way of keeping his promises to devotees.