Brain Damage
Pink Floyd/Musicfire.in Lyrics

The lunatic is on the grass
The person deemed crazy is seen enjoying themselves outside in a public area.

Remembering games and daisy chains and laughs
Recalling the innocent games and happy memories of the past.

Got to keep the loonies on the path
It's important to steer the insane individuals onto a proper life course.

The lunatic is in the hall
The crazy person has made their way indoors and is causing a disturbance.

The lunatics are in my hall
Multiple mentally unstable individuals have entered and are inhabiting the same location as the singer.

The paper holds their folded faces to the floor
Newspapers are concealing the faces of those declared insane from the general public.

And every day, the paperboy brings more
The amount of people labeled as crazy continues to increase and is regularly reported on in the newspaper.

And if the dam breaks open many years too soon
In the event of a catastrophic and unexpected event happening before it's due to occur...

And if there is no room upon the hill
And if there's nowhere to escape or seek refuge...

And if your head explodes with dark forebodings too
Additionally, in the case of one's own mental breaking point being reached...

I'll see you on the dark side of the moon
The singer will be with the person going through a difficult time, standing by them through their suffering.

The lunatic is in my head
The 'crazy' individual resides within the mind of the singer.

You raise the blade, you make the change
Trying to fix one's own insanity can be painful, as if undergoing a literal operation.

You rearrange me 'til I'm sane
By rearranging how they see and perceive things, the singer is able to overcome their own insanity.

You lock the door and throw away the key
Once they've locked away their craziness, there's no way back in.

And there's someone in my head, but it's not me
A part of the singer doesn't feel like themselves, almost as if they're possessed by someone or something else.

And if the cloud bursts thunder in your ear
In a metaphorical sense, if something particularly distressing happens...

You shout and no one seems to hear
...the other people in your life may seem unaware or indifferent to your suffering.

And if the band you're in starts playing different tunes
Lastly, if the people you surround yourself with change, becoming unrecognizable and unfamiliar...

I'll see you on the dark side of the moon
...the singer will be there to offer a helping hand and remain supportive no matter what. Lastly, they acknowledge that they didn't really have a particular point to make.

(I can't think of anything to say really, except)
The singer doesn't have anything else specific to add.

(I think it's marvelous)
The singer simply notes that they find the situation they've found themselves in quite impressive, in a way that's almost reminiscent of wonder or admiration.