What was the story behind Baba asking Dada Kelkar to fetch meat on a fasting day?

Chapter 38 recounts an incident involving Ganesh Damodar Kelkar, an elderly and devout Brahmin known as Dada. On Ekadashi, a day of fasting, Sai Baba specifically ordered Dada Kelkar to go and buy some meat, giving him the money and instructing him to go personally. This order was a significant test for Kelkar, who was a man of perfect conduct and a follower of Vedic duties. The text suggests this was a lesson in devotion, highlighting the principle that the true offering, or 'Dakshina,' to a Guru is the complete performance of their command, which pleases the Guru above all else.