Pain into Purpose is a groundbreaking exploration of Argentina's Movimiento Negro (Black resistance movement). Employing a multi-year ethnography of Black political organizing, Prisca Gayles delves deep into the challenges activists face in confronting the erasure and denial of Argentina's Black past and present. She examines how collective emotions operate at both societal and interpersonal levels in social movements, arguing that activists strategically leverage societal and racialized emotions to garner support. Paying particular attention to the women activists who play a crucial role in leading and sustaining Argentina's Black organizations, the book showcases the ways Black women exercise transnational Black feminist politics to transform pain into purpose.