Sankara's multivocality and secret teaching

Sankaracharya of the 8th century A.D is considered the greatest philosopher of India up to this day. His teaching of the one and only self has become the most prestigeous expression of the Hindu spirit. Sankara is the author of the Brahmasutrabhasya, the most important text of the school known as Advaita-Vedanta. Sankara teaches of the self by dialogues between a winning exponent and a losing opponent. Up to this day, Sankara's teaching has been invariably identified with the exponent's doctrines. In this book a distinction between the invisible authon and his alleged exponent is offered. Sankara the author is a new intellectual hero different from his exponent. Thus, due to the aforementioned distinction, a new philosophy and theory of freedom emerges, the teaching of Sankara, the author distinguished from his apparent exponent.