Sand Dollar

I lost something of mine today
Something that I'd thought would stay
Now that it's gone, I wish I'd cry
But no tears will come from eyes
Put in a small glass box
I didn't think it needed locks
But here time came ans stole away
The one thing that I'd hoped would stay
Old scars open and bleed new tears
Coming back are banished fears
I've made mistakes and I still do
I didn't know the lie was true
How can one cry for a thing so small,
When for others she feels not at all?