Meeting with Mandana Mishra
Main article: Maṇḍana Miśra
One of the most famous debates of Adi Shankara was with the ritualist Maṇḍana Miśra. Maṇḍana Miśra held the view that the life of a householder was far superior to that of a monk. This view was widely shared and respected throughout India at that time.[25] Thus it would have been important for Adi Shankara to debate with him. Madana Mishra's guru was the famous Mimamsa philosopher, Kumārila Bhaṭṭa. Shankara sought a debate with Kumārila Bhaṭṭa and met him in Prayag where he had buried himself in a slow burning pyre to repent for sins committed against his guru: Kumārila Bhaṭṭa had learned Buddhist philosophy from his Buddhist guru under false pretenses, in order to be able to refute it. Learning anything without the knowledge of one's guru while still under his authority constitutes a sin according to the Vedas.[26] Kumārila Bhaṭṭa thus asked Adi Shankara to proceed toMahiṣmati to meet Maṇḍana Miśra and debate with him instead.(Mahishmati is on the banks of the holy river – Narmada, in Madhya Pradesh. Mahishmati is now known as Mandala. . Mandala finds mention in Pauranic literature as the capital of Sahasrabahu Kartyaveer Arjun who had obstructed the river by his thousand arms by his frolicking, at his capital Mahishmati),
After debating for over fifteen days, with Maṇḍana Miśra's wife Ubhaya Bhāratī acting as referee, Maṇḍana Miśra accepted defeat.[27] Ubhaya Bhāratīthen challenged Adi Shankara to have a debate with her in order to 'complete' the victory. She asked him questions related to sexual congress between man and woman – a subject in which Shankaracharya had no knowledge, since he was a true celibate and sannyasi. Sri Shankracharya asked for a "recess" of 15 days. As per legend, he used the art of "para-kaya pravesa" (the spirit leaving one's own body and entering another's) and exited his own body, which he asked his disciples to look after, and psychically entered the dead body of a king. The story goes that from the King's two wives, he acquired all knowledge of "art of love". The queens, thrilled at the keen intellect and robust love-making of the "revived" King, deduced that he was not their husband, as of old. The story continues that they sent their factotums to "look for the lifeless body of a young sadhu and to cremate it immediately" so that their "king" (Shankracharya in the king's body) would continue to live with them. Just as the retainers piled Shankracharaya's lifeless corpse upon a pyre and were about to set fire to it, Shankara entered his own body and regained consciousness. Finally, he answered all questions put to him by Ubhaya Bhāratī; and she allowed Maṇḍana Miśra to accept sannyasawith the monastic name Sureśvarācārya, as per the agreed-upon rules of the debate.[28]