Can you explain Sai Baba's practice of asking for Dakshina as described when Ratanji visited him?

According to Chapter 14, it was a regular practice for Sai Baba to ask for Dakshina, or an offering, from anyone who came for his darshan, irrespective of their religion. The amount requested was not fixed and could range from a few rupees to enormous sums like hundreds or thousands. The text notes that Baba might even tell a devotee to take out a loan if they claimed their money was finished. In return for this offering, Baba would reassure his devotees not to worry, promising to give them 'bags of rupees' in return. He stated, 'if he gives Me one quality, I give him a hundred qualities in return,' emphasizing that his primary desire was for a devotee's genuine love and surrender.