Based on Chapter 38, why is food donation considered so important?

According to the teachings in Chapter 38, food donation (Annadan) is the highest form of charity and the foremost among all deeds. The scriptures state that while other ages had different primary duties, charity is the key practice for the current Kali age. The text profoundly states that food is the form of Para-Brahman (the Supreme Reality), from which all beings are born and by which they are sustained. As Chapter 38 highlights, Sai Baba himself followed this worldly custom of feeding people, reinforcing the immense greatness of satisfying the hunger of any guest who arrives at one's door.