There's a fly buzzing 'round inside my head
And it can't find it's way out
Crawling here and there not getting anywhere,
I can feel it panicking now
As it follows a bundle of nerve fibres
Down the temporal lobe to my spinal cord
Backs up to the pituitary gland,
Flees to the forebrain, turns again
I can feel each footstep like a punch,
My eyes explode with pain
As it makes it's way up my optic track
Then pauses and turns again
It probes my Hypotalamus,
Blunders 'round my Cranium
From the tectum to the Tegmentum
Stretches it's wings, then turns again
Until it reaches the control centre,
That tells me that I'm me
It burrows into my synapses,
Rests a while and then it starts to feed