Nisargadatta lived an ordinary life in Mumbai — married, children, a small shop selling bidis — while teaching whoever came to his upstairs room. His method was simple: turn attention toward the sense “I am” and investigate it until what it refers to reveals itself.
i-am-that, a compilation of his dialogues with visitors, became one of the essential non-dual texts of the 20th century. His directness is legendary:
“You must begin by disbelieving everything you take for granted, especially about yourself.”