I think it's about going through some routines of the day that we sort of take for granted or don't care about, we sort of numb these things ("These fingers aren't my fingers, these hands are not my hands"), or maybe not us maybe those who have jobs that are routine and ... "In the river my machinery.... echoing ghost just laid by those who whistle while they work"...
i think they are sympathizing with blue collar workers.
I think it's about going through some routines of the day that we sort of take for granted or don't care about, we sort of numb these things ("These fingers aren't my fingers, these hands are not my hands"), or maybe not us maybe those who have jobs that are routine and ... "In the river my machinery.... echoing ghost just laid by those who whistle while they work"... i think they are sympathizing with blue collar workers.