Amid the mainstreaming of self-care, the definition of “healing” grows increasingly nebulous. “In a lot of cases, the term is on a runaway train that looks good, smells good, and has a great image of a glowing chakra behind it,” says Samer Ghadry, a Brooklyn-based sound healer. In his line of work, he continues, “all we’re really looking for is fortification of the human soul, of our spirits.”