In particular, he was known for his intensely negative views of Ibn Arabi, Hallaj, Ibn al-Farid, Ibn Sab'in and Shushtari, some of the primary figures in Sufism.
Ibn Arabi, a 12th Century philosopher known as Dr. Maximus in medieval Europe
Sayed Haydar Amoli, Sayyid Baha al-Din Haydar, Haydar al-'Obaidi al-Hossayni Amoli,a Shi'ite mystic and Sufi, philosophers, was an early representative of Persian Imamite theosophy and one of the most distinguished commentators of the mystic philosopher Ibn Arabi, during the 14th century.
Ibn Khaldun | Ibn Battuta | Al Shabab Al Arabi Club | Husayn ibn Ali | Hasan ibn Ali | Ibn Hisham | Jābir ibn Hayyān | Ibn Ezra | Abraham ibn Ezra | Tariq ibn Ziyad | Ibn Battuta Mall | Ibn Arabi | Solomon ibn Gabirol | Ibn Saud | Ibn Hawqal | Ibn Ezra (disambiguation) | Abu Sufyan ibn Harb | Yusuf ibn Tashfin | Qazan Khan ibn Yasaur | Muhammad ibn Jarir al-Tabari | Imam Muhammad ibn Saud Islamic University | Ibn Khordadbeh | Ibn Abi Zar | Hisham ibn Abd al-Malik | Amrus ibn Yusuf | Akhnas ibn Shariq | Abu'l-Fazl ibn Mubarak | Abd al-Aziz ibn Musa | Zayyan ibn Mardanish | Ubayda ibn as-Samit |
Every year he conducts Urs of Shaik-E-Akbar Mohiuddin ibne Arabi, Syed Sultan Mahmoodullah Shah Hussaini, Syed Machiliwale Shah, Moulana Peer Ghousi Shah, Moulana Peer Sahvi Shah to promote their teachings and also to solve pressing problems of the time.
Schwartz's exposure to Islam began with the study of Sufism during his early years, and he describes himself as a disciple of Ibn Arabi.
He is best known for his groundbreaking work on Rumi and Ibn 'Arabi, and has written extensively on the school of Ibn 'Arabi, Islamic philosophy, Shi'ism, and Islamic cosmology.