Guide Irina Lotarevich’s edgy minimalism, Koyoltzintli’s investigations into a sacred object, Daniele Frazier’s explorations in camera-less photography, and more. Maria Auxiliadora da Silva, "Cotton Harvest" (1973) (© the artist; courtesy the artist and Mendes Wood DM, São Paulo, Brussels, Paris, New York) As robust May flowers bloom in all directions, we embrace the vibrant energy of Primavera. Amid increasing global chaos, art endures as the ultimate stronghold of free expression against tyranny. This month, the Hessel Museum of Art presents the annual showcase of dynamic exhibitions by recent graduates of the Center for Curatorial Studies at Bard College. September Gallery features dreamy explorations in camera-less photography by Daniele Frazier and empowered mixed-media works by Lukaza Branfman-Verissimo.…