A Dogon ceremony for the winter solstice.https://books.google.com/books?id=GYjc5POwJjAC&pg=PA138&lpg=PA138&dq=goru+solstice&source=bl&ots=-O_yWY0zzY&sig=dldEURm4XjUUQYgEpt79KHGQibA&hl=en&sa=X&ved=0ahUKEwiIlPrHnoDaAhXrna0KHV-1BHAQ6AEIjAEwDg#v=onepage&q=goru&f=false