What is left was left behind, collecting dust in frozen time

Mercy, mercy, mercy me
I'm still finding forgotten things
In the hall, and under seats
Each bobby pin I find, reminds me

This was house was once a home sweet home
Now, it's a plain where buffalo roam
And I roam, and I roam, and I roam, and I roam
Only to graze the plain alone

Mercy, mercy, mercy me
I'm still finding forgotten things
In the hall, and under seats
Each bobby pin I find, reminds me

No more, no more, no more
Tangled hangers by the bed
No more, no more, no more
Strands of hair that she shed
No more, no more, no more
Bobby pins left for dead
No more, no more, no more
Words left unsaid

Mercy, mercy, mercy me
I'm still finding forgotten things
In the hall, and under seats
Each bobby pin I find, reminds me
...
What's missing