“What does a good day look like?” That question — when asked of both terminally-ill and healthy people — has transformed Atul Gawande’s practice of medicine. A citizen physician and writer, Gawande is on the frontiers of human agency and meaning in light of what modern medicine makes possible. For the millions of people who have read his book “Being Mortal,” he’s also opened new conversations about the ancient human question of death and what it might have to do with life.

Atul Gawande practices general and endocrine surgery at Brigham and Women’s Hospital in Boston. He’s also Professor in the Department of Health Policy and Management at the Harvard T.H. Chan School of Public Health and Samuel O. Thier Professor of Surgery at Harvard Medical School. He was recently named the CEO of Haven, a healthcare venture spearheaded by the leaders of Amazon, JP Morgan, and Berkshire Hathaway. He’s been a staff writer for “The New Yorker” magazine since 1998 and is the author of four books, including “The Checklist Manifesto” and “Being Mortal: Medicine and What Matters in the End.”

This interview is edited and produced with music and other features in the On Being episode “Atul Gawande — What Matters in the End” Find more at onbeing.org.