What does it mean when someone says "until the concrete angel falls"

If you keep building these walls, brick by brick towers so tall, soon I won't see you at all, until the concrete angel falls, I knew who you were from the start, but now I don't know who you are, soon there will be nothing at all, until the concrete angel falls.

Soon there will be nothing at all, Till the concrete angel falls

~*Buffy ♡ Angel / Angelus - Concrete Angel Fall*~

The Concrete Angel Will Fall HD

Let me breath you in
And breath the words in your mouth
Inside your shivering
The silence shouts so loud

I just want to
I just want to stay around
While my heart beats
I promise I won't let you down

If I'm somewhere else
It doesn't mean that I don't see
That you don't trust yourself
That's why you don't trust me

It makes me crazy
When you're crazy, you don't speak
You think you know me
But what you know is just skin deep

If you keep building these walls
Brick by brick towers so tall
Soon I won't see you at all
Until the concrete angel falls

I knew who you were from the start
But now I don't know who you are
Soon there will be nothing at all
Until the concrete angel falls

If you keep building these walls
Brick by brick towers so tall
Soon I won't see you at all
Until the concrete angel falls

I knew who you were from the start
But now I don't know who you are
Soon there will be nothing at all
Until the concrete angel falls

Concrete Angel Lyrics - Christina Novelli

If you keep building these walls
Brick by brick tower so tall
Soon I won’t see you at all
‘Til the concrete angel falls
I know who you are from the start
But now I don’t know who you are
Soon there will be nothing at all
‘Til the concrete angel falls

until the concrete angel falls
Here's the full list of all the songs on the internet containing the lyrics: 'concrete angel fall if you keep building these walls tower so tall'.

Angels Fall Mass Market Paperback – May 29, 2007 ..

0 retweets 0 likes. Reply. Retweet. Retweeted. Like. Liked. More. Copy link to Tweet; Embed Tweet. Darryl   @DarrylMorrison9 Oct 8. Till the Concrete Angels fall.

Rating is available when the video has been rented

Angels Fall (TV Movie 2007) - IMDb

Martina McBride - Concrete Angel Lyrics | MetroLyrics