Nan Yar — Who Am I
The Teaching
If other thoughts arise, one should, without attempting to complete them, inquire "To whom did they arise?" What does it matter however many thoughts arise? At the very moment that each thought rises, if one vigilantly inquires "To whom did this arise?", it will be known "To me." If one then inquires "Who am I?", the mind will turn back to its source and the thought which had arisen will also subside. — Ramana Maharshi, Nan Yar
Commentary
Ramana Maharshi is among the most significant figures in twentieth-century Advaita Vedanta, and his teaching of atma vichara — self-inquiry — is one of the perennial tradition's most direct instructions on how to investigate the nature of the self that appears to be having experiences.
The teaching emerged from a single direct recognition at sixteen. Alone in his uncle's house in Madurai in 1896, he was seized by an overwhelming fear of death for no external reason. Rather than flee it, he lay down, made his body as still as a corpse, and asked directly what remained when the body was treated as already dead. He recognized, in that one sitting, that when the body was gone the 'I' was still present — awake, aware, undiminished. Not the body-I. Something else. He had no philosophical framework for it and had not studied the Advaita texts; the vocabulary of sat-chit-ananda and turiya he later used to point at it was developed after the fact, when seekers began to come and he needed language to bridge from his recognition to their questions. He left home soon after and spent the rest of his life at Arunachala, receiving seekers in silence and, when needed, teaching self-inquiry directly.
The method is deceptively simple. Whenever a thought arises, ask to whom did this thought arise? The answer is invariably to me. Then ask who am I? Held with sincerity and without expecting a conceptual answer, this second inquiry turns the mind back on itself and reveals that the 'I' that seemed to be the subject of thought is itself a construction. What remains when the construction dissolves is the recognition Ramana had at sixteen.