Hello! !
The whole poem is very bold, and the central expression means that newborn calves are not afraid of tigers, which is what the legendary swordsman means.
The first two sentences mainly show that newborn calves are not afraid of tigers and sinister rivers and lakes because they are young. Free and unfettered, I am the only one.
The last two sentences express the legendary swordsman's meaning incisively and vividly. No matter how many difficulties and obstacles lie ahead, I still dare to compete with any powerful force without hesitation. It feels like I'm smiling at the sky from the horizontal knife.
This is the heroic feelings expressed by the newcomers, which is just the opposite of the artistic conception expressed by the old Jianghu that he who sees through the world of mortals and does nothing in the world, giving people positive encouragement.