In this book, the author talks about the Formless form worship of the Lord under three sub-divisions: Sufism, Advait, Nirakar and Shabda Upasana. Main emphasis is given to worship of His attributes - Vibhuti Upasana.
Under this, the upasak is content with merging his personality into the Divine personality, wherein he imagines he loses his individuality as a drop in the ocean.The aspects of the Divinity that are the subject of worship are broadly two: the worship of the Divine Personality, the Form ( Madhurya Vibhutiman) and the Divine Attributes inclusive of His Omniscient (vyapak) Formless aspect (Aishwarya Vibhuti). The Vedas leaned more towards the Formless aspect of the Lord but Bhagavad Gita emphasised the Form of the Lord.
It is this Impersonal form of worship that is pursued by the Sufis, Christians, Advaits, Nirakarvadis and Shabdmargins and the mystics in the East and the West.
The first part of this book contains the sketches of the Sufis of India: Farid, Sarmad, Bullah Shah, Shah Latif and Nazir.
The second part of this book contains the sketches of Nirakars, shabdamargis and Advaitha Upasakar.
Sankaracharya, as the founder of Advait School of thought.
Gyaneswar, The Great Yogi of Maharashtra.
Nanak, The Sikh Guru.
Namdeo and Kabir from Nirakar-cum-shabdamargis.
Samarth Ramdas, a votary of pure mysticism and a man of great renunciation.
This book conveys to the world the spiritual legacy of India.
The book also contains more than 100 pages of verses from the books of these Sufi saints.