I listened to an episode of Invisibilia yesterday that described how this emotion manifests itself. You can listen to it yourself if you wish. https://www.npr.org/podcasts/510307/invisibilia It's the one with the title High Voltage (Emotions Part 2) "Can you discover an emotion? We travel to the jungles of the Philippines where an anthropologist named Renato Rosaldo lived with the Ilongots, an isolated tribe of headhunters. There he learns about legut, an emotion so intense, and varied, and scary to him, that he can't really map onto the usual palette of American emotions. It takes many years, and a shocking and tragic event, for Rosaldo to fully grasp legut." Legut is apparently an emotion the Ilongots collectively feel when they suffer, or are reminded of the loss of loved one, or something they loved. It manifests itself in intense collective wailing. Rosaldo found the behaviour shocked him and when he tried to find out what was going on, the Ilongots told it was legut and repeated said "We have to take a head." since apparently head hunting is the only thing their custom has prepared them with to restore a sense of calm. Maybe there's something in this that teachers who are saddened about the way education has gone since they began their careers have something to learn from the Ilongots.