Option, perception or a realization

I see shreds
Of me
Flying away

I know I can’t
Be silent
And watch them stray

And I also know
I can’t choose
And but one let them loose

I try
Sewing up
The rest

But they turn smaller
And smaller
To thwart my quest

So I build
A shield around me
But it doesn’t pass the test

I gather
The autumn leaves
To find some glue

But all I find
Is tired
Dusty dew

So I let them go
As far as
They can fall

After the horizon
Coming and going would make
No difference at all