Especially when man still lived in the forests, people were in constant danger from tigers and had no option but to choose between their own life or another. "The ferocious tiger is hidden deep in the mountains / His long roar whips up the wind / They say the traveler Walks in joy / But he walks in fear of death."
尤其在臻芒草萊時代，人不時受虎威脅，更無法閃避在自己生命與其他生命之間做一個選擇，「猛虎潛深山，長嘯自生風，人謂客行樂，客行苦傷心。」