How were the uninvited guests at Dev's Udyapan treated, and what was the significance of their presence?

At Dev's Udyapan, a Sanyasi arrived uninvited and announced he would return for the meal at noon with two companions. When the three of them arrived, Dev seated them and they were served a satisfying meal. As detailed in chapter 40, they received the full rituals of hospitality, including Uttaraposhan (final sipping of water), Shuddhachaman (rinsing the mouth), and Mukhashuddhi (mouth fresheners). They were also honored with sandalwood paste, flowers, betel leaves, and perfume. The significance, which Dev missed at the time, was that this Sanyasi and his two companions were Sai Baba fulfilling His promise to attend the feast, demonstrating how He can appear in any form to be with His devotees.