What is the meaning of the vision seen by me in which Shirdi Sai Baba repeatedly merged with the photograph of Swami?

[This question is part of a Mahā Satsaṅga (grand spiritual discussion) between Swami and devotees. The devotees included Shri Parikshit and Smt. Bindiya, legal experts from Delhi and Dr. J S. R. Prasad, professor of Sanskrit, Central University, Hyderabad. Smt. Bindiya asked: One day I saw Shirdi Sai Baba merging with Swami in a photograph again and again. I shook my head, rubbed my eyes and looked again. But the same scene repeated again and again. What does it mean?]

Swami replied: O Learned and Devoted Servants of God! Sai Baba was an Incarnation of God Datta and He tried to bring mutual harmony between Hinduism and Islam. A prominent follower of Adi Shankaracharya criticized Sai Baba, some years ago. But I explained to him that the philosophies of Ādi Śaṅkaracārya and Sai Baba are one and the same. Hinduism is a mini-model of this entire world. In the world, there are several religions. In Hinduism too, there are several sub-religions. Śaṅkara united all the sub-religions of Hinduism. Sai Baba brought mutual unity in Hinduism and Islam. Śaṅkara proved that God Śiva and God Viṣṇu are one and the same ultimate God. Sai Baba said that God Śiva, God Viṣṇu and Allah are one and the same ultimate God. If two different forms of God can be united by understanding that they are the same ultimate God, why can we not unite three different forms of God, with the same realization that they are all the same ultimate God?

Shankara satsanga Vishnu Shanakaracharya Shiva