Sai Baba opposed all persecution based on religion or caste. He was an opponent of religious orthodoxy – Christian, Hindu and Muslim.
Sai Baba encouraged his devotees to pray, chant God’s name, and read holy scriptures. He told Muslims to study the Qur’an and Hindus to study texts such as the Ramayana, Bhagavad Gita and Yoga Vasistha. He was impressed by the philosophy of the Bhagavad Gita and encouraged people to follow it in their own lives. He advised his devotees and followers to lead a moral life, help others, love every living being without any discrimination, and develop two important features of character: faith (Shraddha) and patience (Saburi). He criticised atheism.
In his teachings, Sai Baba emphasised the importance of performing one’s duties without attachment to earthly matters and of being content regardless of the situation. In his personal practice, Sai Baba observed worship procedures belonging to Islam; he shunned any kind of regular rituals but allowed the practice of Salah, chanting of Al-Fatiha, and Qur’an readings at Muslim festival times. Occasionally reciting the Al-Fatiha, Baba enjoyed listening to mawlid and qawwali accompanied with the tabla and sarangi twice daily.
Sai Baba interpreted the religious texts of both Islam and Hinduism. He explained the meaning of the Hindu scriptures in the spirit of Advaita Vedanta. His philosophy also had numerous elements of bhakti. The three main Hindu spiritual paths — Bhakti Yoga, Jnana Yoga, and Karma Yoga — influenced his teachings.
Sai Baba encouraged charity and stressed the importance of sharing. He said
Unless there is some relationship or connection, nobody goes anywhere. If any men or creatures come to you, do not discourteously drive them away, but receive them well and treat them with due respect. Sri Hari (God) will certainly be pleased if you give water to the thirsty, bread to the hungry, clothes to the naked, and your verandah to strangers for sitting and resting. If anybody wants any money from you and you are not inclined to give, do not give, but do not bark at him like a dog.”