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We must be swift as the coursing river,
(Be a man)
With all the force of a great typhoon,
(Be a man)
With all the strength of a raging fire,
Mysterious as the dark side of the moon
We must be swift as the coursing river. In this part shang wants them to be fast and you have to be fast to be a man. With all the force of a great typhoon. Its saying that to prove your a man you have apply force in your tactics. With all the strength of a raging fire, mysterious as the dark side of the moon. You must be strong to win war and be a man. And also you have to be sneaky and be able to surprise attack.