Can you explain the story of Dada Kelkar being asked to buy meat on Ekadashi? What was the purpose of this test?

Chapter 38 recounts an incident where Sai Baba tested a devotee's faith. On Ekadashi, a fasting day, Baba ordered Ganesh Damodar Kelkar, a devout Brahmin, to personally go and fetch meat. This order was a novelty and a challenge to Dada Kelkar, who was known for his perfect conduct and adherence to Vedic duties. The text implies that this was a profound test of surrender and obedience. The narrative suggests that the true offering, or 'Dakshina,' to a Guru is not merely material but the faithful performance of the Guru's command without question. This incident was used by Baba to make his devotees experience the principle that a disciple's faith should be firm enough to transcend personal doubts about what is considered edible or inedible when acting on the Guru's word.