What lesson about fasting and true welfare is taught through the story of the woman in Chapter 32?

Chapter 32 recounts an incident with a woman who had a firm resolve to fast for three days upon visiting Sai Baba. However, her plan was altered as Baba made her prepare and eat puranpolis until she was fully content. The lesson derived from this, as explained in Chapter 32, is that true spiritual welfare lies in selfless service to others. The text states, "Wearing out the body for others' sake - this blessed act is true welfare." This suggests that active service and compassion can be a more profound spiritual practice than personal austerities like fasting, teaching the devotee a lesson she would never forget.