As I was locking up for the night, the tiny LED torch I keep on my keyring fell to pieces (...like me, I think its head had come a little unscrewed)!
So I put it (the torch...) back together, and checked that it worked; but I must not have switched it off properly, because it came on again as I put it down on the table.
And I thought (I was tired, okay?) that it almost looked like there was an angel entering the torch, rather than light being emitted from it.
(I told you my head was feeling a bit loose...!?!)

So why the title? Well... -- it's an LED torch: so it seemed appropriate, somehow:
"There’s an angel on my shoulder, in my hand a sword of gold..."

(And I know it's quite abstract; but I'm quite enjoying the 'glowing' theme
that seems to have developed, this last couple of days...!)

(No Photoshop trickery, by the way: that 'halo' is for real...!)