Mr Quimby's Beard - Coming Down lyrics

I know not now what I knew then I think I'm coming down again Had everything so well in hand I wish I could just understand A stunning glare, a crystal haze I find it hard to fix my gaze Wandering eyes, transparent sight Colours flashing, a blinding light A marvelous thought pa**ed through my mind But it's been left so far behind I know not now what I knew then I think I'm coming down again