Missing something

There is something missing...
I don't know what it is...
And I don't know where to find it...
But I know there is something missing....

It is not a missing piece to a puzzle...
It is not a missing key to a jewelery box...
It is not a missing soul to a mortal...
But it is still missing...

Will I ever know what is missing?
Will I ever know where to start searching?
Will I ever find what is missing?...