When everything changed

There is a saying, don`t live on what was,

live on what is,

But what does it really mean?

Are we bound to be happy at some point in time

then broken as the next comes?

The strings are all weak and frail,

All support mechanisms seem to fail,

And inside all that plays is `what was`.

There is no more here I am,

but only we were once there.

Pain, gain and rain!

All seem to sound the same,

All have the same meaning inside!

For pain rains when gain is no more

And rain falls when pain strikes.

Question is, was I next on the target list,

or did it happen because it wanted to?

Is there a pattern to how it goes?

And is there a cipher key...

How can we find it to decode the whole list?

And who`s next on this hit list?