Mourning is an inevitable part of our human existence. But what exactly does it mean to mourn, and why is it an essential part of our well-being and survival? These questions have long fascinated Prof. Jonathan Lear, a philosopher at the University of Chicago. In his new book, Imagining the End: Mourning and Ethical Life, Lear unpacks why mourning contributes to a life well lived. He dissects the many ways we mourn in our everyday lives; when attachments are taken away from us, and even when we express gratitude.