Maybe I'm wrong, but I always thought this song is about working-class, especially about office-workers. It's them who live their lives as canaries in a coalmine: they take nearly no benefit from "working" in a "coalmine" just serving others without their own control of situation, but they fall first in any dangerous situation. Lines about Firenza and influenza I understand as irony: "you want to go to warmer countries for a winter, because you are afraid of influenza, but you don't even realize that you're living just as canary in a coalmine". And lines about delusions: "you feel depressed and pay your analist to tell you're suffering from delusions, but real delusions are about your life, when you're not awair about your "canary-tipe" life".
Maybe I'm wrong, but I always thought this song is about working-class, especially about office-workers. It's them who live their lives as canaries in a coalmine: they take nearly no benefit from "working" in a "coalmine" just serving others without their own control of situation, but they fall first in any dangerous situation. Lines about Firenza and influenza I understand as irony: "you want to go to warmer countries for a winter, because you are afraid of influenza, but you don't even realize that you're living just as canary in a coalmine". And lines about delusions: "you feel depressed and pay your analist to tell you're suffering from delusions, but real delusions are about your life, when you're not awair about your "canary-tipe" life".