Grey/Gray

I live inside a fog when you are gone
A real pea-souper, old-style London fog,
In which no sign of sunset nor of dawn
Can penetrate the dark that seems to clog
My every faculty: I do not know
If it is day or night or in-between,
For either way my world's a dull grey glow,
And anyway, what would a daytime mean
To one who's sun is elsewhere? How could I
Claim to be warmed or lit when you are far?
I only sit and stare - at nothing - sigh,
And wonder how you're doing where you are.
So do I really live? Why yes, I do
I live my love vicariously through you.