Why is Shirdi considered the ultimate pilgrimage destination for devotees of Sai Baba?

According to the teachings presented, Shirdi is regarded as the ultimate pilgrimage site because it encompasses the sanctity of all other holy places. Chapter 4 explicitly states that for a devotee, Shirdi is Pandharpur, Jagannath, Dwarka, Gaya, Kashi, and Rameshwar, among others. The text emphasizes that association with Sai in Shirdi is a very easy spiritual path, offering the pacification of all worldly life. The simple act of having the sight (Darshan) of Samarth Sai is considered a form of Yoga practice, making a pilgrimage to Shirdi a complete and fulfilling spiritual journey in itself.