Yesterday.

Yesterday, a sad day.
Yesterday was fun.
Yet yesterday, is yesterday.
A day that's gone goodbye.

Forever more our past is gone.
A history, we write.
But even though, events are gone.
Our memories still haunt.

'Cos yesterday, is yesterday.
The finished chapters in our book.

But all I know,
Is that though chapters go,
They are still there in the book.

So unlike tomorrow,
The bane of yesterday,
Is the truth we can't rewright.

Yesterday, a sad day,
Yesterday was fun.
Tomorrow dose not care.

'Cos yesterday, was yesterday.
The curse for our human minds.

Note. 
I wrote this poem last year. Though I've changed it a bit. I think it sounds better this way.