Yeah, so I came across this looking for some Evanescence songs *surprise*. The song is called "Even in Death". It is about a love so strong that it surpasses even death (ringing any bells?). I don't know about you, but I see a relation to Cloud and Aerith. Here are the lyrics:

Give me a reason to believe
That you're gone
I see your shadow
So I know they're all wrong
Moonlight on the soft brown earth
Leads me to where you lay
They took you away from me
But now I'm taking you home

I will stay forever here with you
My love
The softly spoken words you gave me
Even in death our love goes on

Some say I'm crazy for my love
Oh my love
But no words can hold me from your side
Oh my love
They don't know you can't leave me
They don't hear you singing to me

I will stay forever here with you
My love
The softly spoken words you gave me
Even in death our love goes on

And I can't love you
Anymore than I do

I will stay forever here with you
My love
The softly spoken words you gave me
Even in death our love goes on

And I can't love you
Anymore than I do

People die..
But real love is forever

What do you think?

Yeah for some reason this song reminds me of AerithxCloud aswell :D