Hearse: Shaped Basins Of Darkest Matter

On the left side again
Black fish are being bred
Cultivated in vast amount
Harboured by enormous tubs, all of them made of glass
They are resembling massive moving planes
One of these even has the shape of a gigantic hearse
Could this be some sort of restaurant perhaps?
Oh, stupid boy, won't you turn around?
Don't you hear the sound
Of the tocsin ringing in the air?!

Climbing up the slope of stairs
Taking two steps at once
The vats are rising as he gets higher
Growing steadily now on both sides of the path
Visciously filling up every s***e.

Only a few meters away from him
They are joining above his head
Like an archway they are building a passage
Through its transparent walls he can see the black fish moving
Like a tunnel, all organic and dark
A black mouth waiting, veiled in hungry architecture
Quite perfectly disguisedyet, (t)his premature entry would be (entirely) unauthorised
Oh, stupid boy turn around
This place is most unhealthy ground!
Don't you hear the sound of the tocsin ringing in the air?!