Ātma-vicāra, inquiry into the self, is an Advaita practice made central by Ramana Maharshi in the twentieth century. Rather than seeking the self through concepts, the seeker turns attention to the feeling of I itself and asks where it arises, until the ego subsides into pure awareness. Inquiry is also the second stage of the Yoga Vāsiṣṭha’s seven.
Ātma-vicāra
Self-inquiry: the practice of asking “Who am I?” to trace the sense of I back to its source.
Also: self-inquiry, Atma vichara