the girl in the mirror

there's a girl in my mirror
sometimes she cries
sometimes she laughs
but she never tells me why?
if i ask her why she's crying
she tells me 'this was you before'
and when i ask her why she's laughing
she tells me 'this is you now'
i never understood what she ment.
what she were doing in my mirror
untill the moment i realized...
that girl in my mirror..
that girl.. is me.