when you are gone的MV中中间墙壁倒了是什么意思

这个MV讲了三个故事,一个是老头对逝去夫人的怀念,一个是妻子对参征丈夫的怀念,一个是女孩对男友的怀念(好象是她妈反对他俩?),围绕WHEN YOU ARE GONE I MISS YOU这么个意思...三方都是痛苦想念爱人,墙倒应是表达他们对爱人的思念达到极至,走出室内,向爱人表达自己的心事,如老头走向夫人墓碑与其饮酒,女孩走向与男友刻字的地方,最后的镜头就更直白了,妻子给参军丈夫发短信I'M OKAY I MISS YOU.
呵呵,自己是这么理解的.看看歌词更明白~
When You Are Gone

I always needed time on my own
我也需要花些时间在我自己身上
I never thought I'd need you there when I cry
我从不指望当我哭泣的时候你会在身旁
And the days feel like years
when I'm alone
我一个人时常感觉度日如年
And the bed where you lie
is made up on your side
你睡过的床还是保持着原样
When you walk away
I count the steps that you take
我悉数着你走过的足迹
Do you see how much I need you right now?
你知道现在我多想你在我身边吗
When you're gone
当你转身离去
The pieces of my heart are missing you
连我破碎的心也在想你
When you're gone
当你转身离去
The face I came to know is missing too
曾经熟悉的脸也消失
When you're gone
当你转身离去
The words I need to hear to