The dark tunnel without the light at the end...

"Street Spirit' is our purest song, but I didn't write it. It wrote itself. We were just its messengers; its biological catalysts. Its core is a complete mystery to me, and, you know, I wouldn't ever try to write something that hopeless. All of our saddest songs have somewhere in them at least a glimmer of resolve. 'Street Spirit' has no resolve. It is the dark tunnel without the light at the end. It represents all tragic emotion that is so hurtful that the sound of that melody is its only definition...

Our fans are braver than I to let that song penetrate them, or maybe they don't realise what they're listening to. They don't realise that 'Street Spirit' is about staring the fucking devil right in the eyes, and knowing, no matter what the hell you do, he'll get the last laugh. And it's real, and true. The devil really will get the last laugh in all cases without exception, and if I let myself think about that too long, I'd crack."  Thom Yorke

... he still won't get the very last laugh though.