How to be invisible
Continuing with the "Aerial" album by Kate Bush, there is an absolutely fascinating song called "How to be invisible", in which she explains how it is that she manages to seemingly vanish when she is not wearing her public KB persona.
The chorus of "How to be invisible" is
Eye of Braille
Hem of anorak
Stem of wallflower
Hair of doormat
I assume that this is a description of KB when she is wearing her alter ego. But this is clearly a description of a gypsy/traveller person. Such people often wear anoraks (i.e. hem of anorak) and have thickly matted hair (i.e. hair of doormat). If such a person kept a low profile (i.e. stem of wallflower) then they would effectively be invisible (i.e. eye of Braille).
What a revelation! Now I understand. Thank you to KB for sharing this with us.