Even if it were not literal, he had to wonder where it was going, what its final destination was, and when it would cease passing by the same stations over and over until he fell to the hallucinations again and finally reached The End Of The Line.
Beyond the light he bewilderdly found himself on the set of Stars in their eyes, the naff British programme where contestants immitate famous singers and do one of their songs...
Dr Toothy then turned up John's dopamine and injected a jolt of serotonin - and both blinding light and blinding nihilism contracted into a single overhead light bulb.
Regretfully, for Dr. Toothy's reputation, he overdid the dose, killing John; Toothy cut off all John's once vigorous body into artful pieces and dumped them in the Twin Peaks river.
The doctor tutted and peered at the drip chamber; John's pulse-rate, REM and encephalographic jittering indicated that he was still experiencing a succession of violent fantasy images.
It was at this point, to the shock of both John and the Dr. Toothy, Superman burst through the side wall of the still moving train, a slight trace of green lipstick visible on his left cheek.
And slight minutes after John imagined it, it really happened, and in the searing blast sweeping through the city, he finally realised that he had been psychic and could foresee events.
But they didn't really, because it had all been a part of John's Grand Quingol, and, with their backs to him, Dr Toothy and Dr Deep Voice were oblivious to the figure behind them that was picking up a big plank....surely it coudn't be....
John (the crumpled hospital sheets snagging on his woe-is-me midnight Goth garb) said, "You shouldn't leave bits of wood lying around like this; someone could get hurt...".
"Sorry about that," said Dr. Toothy, taking the plank and eating it one foul gulp, "some of the nurses here at Morriston Hospital have been building a treehouse out back and they're always leaving parts of it around."
