Pink Floyd - The Dark Side Of The Moon (Full Album) (1973)

The lunatic is in my head. The lunatic is on the grass.
I've been mad for fucking years, absolutely years.

I know I've been mad, like most of us.
Very hard to explain why you're mad, even if you're not mad.
In the high-fidelity first class traveling set,
and after all we're only ordinary men, hanging on in quiet desperation.

Tired of lying in the sunshine staying home to watch the rain,
choose your own ground, dig that hole, forget the sun,
and when come home cold and tired,
not frightened of dying, any time will do,
live for today, gone tomorrow,
and then one day you find ten years have got behind you,
no one told you when to run, you missed the starting gun...

The sun is the same in a relative way but you're older,
shorter of breath and one day closer to death.

The lunatic is in the hall. The lunatics are in my hall.

The sun is eclipsed by the moon. The lunatic is in my head.
There is no dark side of the moon really. Matter of fact it's all Dark.

(Roger Waters, Music for Assorted Lunatics)