ocean of knowledge in exegesis of the Sufism. To this day this has been one of the causes of criticizing him from a religious point of view. In general he was bold in expressing his mystic opinions as can be seen from his praise of Hallaj who was considered a heretic by most of the Pseudo-Sufis and most ignoramus laymen of the time due to irrelevant conclusions without a depth of support of the great majority of the Islamic scholars of the time and present modern era, although the common opinion about Hallaj changed in time. Relationship and Avicenna There is evidence that Abū-Sa'īd and Avicenna, the Persian physician and philosopher, corresponded with one another. Abū-Sa'īd records several meetings between them in his biography. The first meeting is described as three days of private conversation, at the end of which Abū-Sa'īd said to his followers that everything that he could see (i.e. in visions), Avicenna knew, and in turn Avicenna said that everything he knew Abū-Sa'īd could see, in realistic theory presents the superlative connection between Islamic Saints of God (أولياء, Awliya) revealing the reliability of such spiritual powers as believed to be placed on them by Allah ( الله, God). References Further reading E.G. Browne. Literary History of Persia. (Four volumes, 2,256 pages, and twenty-five years in the writing). 1998. Jan Rypka, History of Iranian Literature. Reidel Publishing Company. ASIN B-000-6BXVT-K The modern Abil Khair Abil Khair Organization @ Khanqah Khairiyyah See also List of Persian poets and authors Mir Sayyid Ali Hamadani Persian literature Sufi poetry Sufism outside of Iran Khairiyyah 967 births 1049 deaths Sufi mystics 10th-century Persian-language poets 11th-century Persian-language poets Poets from Nishapur Sufis from Nishapur Samanid-period poets