Far from land, on the cold Atlantic, Viking sailors faced one of the most dangerous enemies imaginable: fog. Without stars, sun, or shoreline, navigation could become impossible. In these moments, Norse crews turned not to silence—but to sound. Saga tradition and later folklore describe sailors chanting deep, rhythmic calls aboard their longships. These were not hymns to gods in the Christian sense, but working chants, ritualized sounds that bound crew, ship, and sea together. The Norse believed