cat on the brain?

Or cat's eyes on the brain?  There's something oracular about this - a near-Delphic head; a vision of ... well, something feline.  One never quite knows what one's going to find in Silver Lake.  Much of the day I've had a cat draped over me, although Gramsci doesn't usually try and sit on one's head, except when one's been in the shower and it has a towel wrapped round it.  Then it's been known ...