If an exhibition is a letter, to whom is it addressed? The viewer is the obvious answer, but artworks also, of course, direct themselves to others: lovers and children, mentors and colleagues, unknown future audiences who might find within the work a blueprint for radical acts of hope and defiance.

“Hold Everything Dear,” Hajra Waheed’s current solo show, has at its heart such an epistolary address. Titled after a 2007 collection of John Berger’s essays, the show builds on a 2017 performance in which the artist manipulated a sheet of black cinefoil on a light projector, revealing a constellation