According to Chapter 38, what is the significance of food donation (Annadan), and how did Sai Baba exemplify this practice?

Chapter 38 of the Sai Satcharitra extensively details the supreme virtue of food donation, or Annadan. It states that while other ages had different primary duties, charity is the highest duty in the current Kali age. The text emphasizes that food donation is the 'foremost among all deeds' and that 'Food is the form of Para-Brahman,' the Supreme Reality from which all beings are born. The chapter explains that Sai Baba himself followed this worldly custom of feeding people, understanding the universal nature of hunger and the importance of satisfying any guest who arrives. As mentioned in the chapter, other donations are considered incomplete without the donation of food, much like a necklace is incomplete without its pendant.