Analysis of The Ghost of the Past

We two kept house, the Past and I,
The Past and I;
I tended while it hovered nigh,
Leaving me never alone.
It was a spectral housekeeping
Where fell no jarring tone,
As strange, as still a housekeeping
As ever has been known.

As daily I went up the stair,
And down the stair,
I did not mind the Bygone there --
The Present once to me;
Its moving meek companionship
I wished might ever be,
There was in that companionship
Something of ecstasy.

It dwelt with me just as it was,
Just as it was
When first its prospects gave me pause
In wayward wanderings,
Before the years had torn old troths
As they tear all sweet things,
Before gaunt griefs had torn old troths
And dulled old rapturings.

And then its form began to fade,
Began to fade,
Its gentle echoes faintlier played
At eves upon my ear
Than when the autumn's look embrowned
The lonely chambers here,
The autumn's settling shades embrowned
Nooks that it haunted near.

And so with time my vision less,
Yea, less and less
Makes of that Past my housemistress,
It dwindles in my eye;
It looms a far-off skeleton
And not a comrade nigh,
A fitful far-off skeleton
Dimming as days draw by.