Despite feeding three uninvited guests, why was Dev still full of doubt and what did he do about it?

Even after the Sanyasi and his two companions came uninvited and were served a full meal, Dev remained uncertain and doubtful. Chapter 40 explains that a "veil of Maya" clouded his perception, causing him to see the event merely as feeding a random guest rather than a fulfillment of Baba's promise. The text states, "it did not occur to Dev that it was Baba; the doubt remained in the mind." This profound uncertainty and disappointment led him to write a letter to Jog. In the letter, Dev expressed his confusion, questioning how Baba could have deceived him and lamenting the lack of a clear experience or proof, showing he was still seeking confirmation of the event's divine significance.