A short vague little ditty which starts in the middle

And I remain aware
As I watch her slip away

I was left a reminder
I was left a key
I was left a message
On my answering machine

And I remain aware
As I watch her slip away

I was sent

To remain aware
As she slips away

I was sent a present
I was sent a sense
I was sent an e-mail
Sent by someone else

It said that
Everyone should feel, totally amazing
If only for a while
As one while is all it takes
While you sleep
It awakes

And the message is clear
Be here
Again, as you were then
Now and forever

I was sent
A letter
I was sent a sign
I was left forever
At the end of the line