Something's missing

When autumn comes
It doesn't ask
It just walks in where it left you last
You never know when it starts
Until there's fog inside the glass around
your summer heart

Something's missing
And I don't know how to fix it
Something's missing
And I don't know what it is
At all

I can't be sure that this state of mind
Is not of my own design
I wish there was an over-the-counter test
For loneliness like this