Based on Chapter 38, why is food donation considered superior to other forms of charity?

Chapter 38 presents a compelling case for the superiority of food donation. It states that while donating items like clothes or vessels requires consideration, food donation needs no such basis and should be offered to anyone who arrives at any time. The text explains that 'food donation is the merit among merits,' comparing it to 'Varann' (fine rice with lentil) being the best among six-flavored foods. The chapter also argues that other donations are incomplete without the donation of food, using the analogy of a necklace being incomplete without its pendant or a cluster of stars lacking beauty without the moon. This illustrates that Annadan is the central and most essential act of charity.