A great religious teacher of the 18th century, Shah Waliullah of Delhi distinguished himself as a major thinker from the age of 15. He helped to revive the Islamic consciousness by "channeling the streams of the Sufi spiritual heritage into traditional Islam" (according to Professor Aziz Ahmed, Toronto) and returned to the essentials of Sufi experience in order to show that, essentially, Sufism is one discipline. He demonstrated, for instance, that the long-standing assumption that Sufi doctrine was divided between Apparentism and Unity of Being was a difference of expression alone, the latter doctrine (of Ibn 'Arabi) being seen as merely a less-advanced stage of projection. Many of the subjects dealt with by him in these two treatises are closely studied today. These include stages of being, the perceptive faculty, the relation of the abstract with the universe, the universal soul and the souls of man, after death, essence, miracles, the scope of man, the soul of the perfect, universal order, source of manifestation, and the transformation of mystics from quality to quality.
His full name is Quṭb ad-Din Aḥmad Wali Allah ibn 'Abd ar-Raḥim al-‘Umari ad-Dihlawi. His father is Shah Abdur Rahim, Islamic scholar himself whom had been compiled Fatawa-e-Alamgiri, a compilation of Hanafi lexicon and founder of the Madarssa-i-Rahimiya. In this school, Shah Waliullah received his early education until at the age of 15, he mastered all major branches in Islamic studies. At the age of 17, Shah Waliullah succeeded his father as the Shiekh of madarssa, For twenty years, Shah Waliullah had been teaching at that school until 1724, when performed the Hajj and studied under the great religious scholar, Shiekh Abu Tahir bin Ibrahim in Madinah for 14 years.