At the end of the season, they return to Heaven. Because the migratory fish are regarded as being of heavenly origin, the catching and eating of them are invested with great ceremony and numerous taboos.
洄游魚類被認為平日與天神同住於天界，只有在春天才從天上下來供達悟人捕食，季節結束後又返回天界，因此洄游魚類是神聖的，撈捕、食用上，有許多相關儀式與禁忌。