The figurative language in lines 5 through 8 emphasizes the 5.
They have bathed in the waters of the world
And carry the soft silt of the Amazon, the Nile,
The Danube, the Rhine, the Yangtze and the Mississip
In the palms of their right hands.

Afirefighter is a rescuer extensively trained in firefighting, primarily to extinguish hazardous fires that threaten life, property and the environment as well as to rescue people and animals from dangerous situations.  just cut some parts to make them shorter and add some of your facts or what describes them most. or what they are supposed to do.