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Shaarei HaYichud VehaEmunah, explanation of the Shaarei HaYichud VehaEmunah section of the Tanya, by R. Aharon HaLevi "the most distinguished disciple of our great rabbi… R. Shneur Zalman (of Liadi), who was his student for thirty years and did not move from him until he revealed to him all the secrets of wisdom…". Shklow, [1820]. First edition.
The book opens with an important preface, which serves as a basis for investigating the nature of the Baal HaTanya's school of thought. There he writes that this book is an explanation, expansion and completion of the teachings of his Rebbe in the Shaarei HaYichud VehaEmunah section of the Tanya. The book explains at length the Arizal's doctrine, based on the teachings of the Baal HaTanya.
Rebbe Aharon HaLevi Segal Horowitz (1766?-1829), G-dly kabbalist, outstanding and profound Torah scholar. A leading and close disciple of the Baal HaTanya. Together with the Rebbe's son, R. Dov Ber, the Mitteler Rebbe of Lubavitch, he offered guidance in worship of G-d to the young men who frequented the Rebbe's court. They both wrote letters to the Chassidim in matters of service of G-d. After the passing of the Baal HaTanya in 1813, a fierce controversy erupted between R. Aharon and the Mitteler Rebbe, regarding the spiritual heritage of the Baal HaTanya, an intellectual debate in profound topics of service of G-d according to the Chabad doctrine. Letters, booklets and books were written and printed on both sides, in which each one exposes his method and approach, and criticizes the opponent's approach. Thus, two courts following the teachings of the Baal HaTanya developed. R. Aharon served as rebbe in Starosel'ye, whilst the Mitteler Rebbe served as Rebbe in Lubavitch. Several of the Baal HaTanya's foremost disciples adopted the path of R. Aharon, headed by R. Avraham Sheines, son-in-law of the Baal HaTanya. In 1820, R. Aharon published in Shklow his first composition - Shaarei HaYichud VehaEmunah, and in 1821 he published his second composition – Shaarei Avoda. After his passing, his books Avodat HaLevi on the Torah and Festivals were published, including in-depth halachic responses he replied to queries sent to him.
His books were not reprinted for many years and they are therefore rare.
Damaged copy. [18], 4, 4, 9-56, 60, 52, 44, [2], 28, [4] leaves. Misfoliation. Bluish paper. 15.5 cm. Fair-poor condition. Stains and wear. Dark stains to several leaves. Extensive worming to most leaves, significantly affecting text (all leaves were restored). New leather binding.
Stefansky Chassidut, no. 582.