It is light

It is an eagle soaring in the sky

Or an unknown bird

Its chirping

Cracked through the vicissitudes of history

Follow the extension of Coal Lane

Restore the storm hundreds of millions of years ago

It is heavy

It is the stubborn sea buckthorn on the earth

Or gentian

Its lushness

Occupied mountain roads and waterways

Texture along the folds

Reminiscing about the soul-stirring memories

It is as light as dust

Burning passionately in the fire

Driving motors to run

It is as heavy as a rock

Dancing in the blast furnace

Breeding the pride of crops from all over the world

It is a witness to history

It is the booster of the times

It is the food of industry

It is a fertilizer for agriculture

It may be heavier than Mount Tai

But not as light as a feather

(Zhang Zongyong of Sunjiacha Longhua Mining Company)