A poem

My girlfriend read this poem to me yesterday---
ALZHEIMER'S
He stands at the door, a crazy old man
Back from the hospital, his mind rattling
Like the suitcase, swinging from his hand,
That contains shaving cream, a piggy bank,
His clothes. On the brick wall beside him
Roses and columbine slug it out for space, claw the mortar.
The sun is shining, as it does late in the afternoon
In England, after rain.
Sun hardens the house, reifies it,
Strikes the iron grillwork like a smithy
And sparks fly off, burning in the bushes-
The rose bushes-
While the white wood trim defines solidity in space.
This is his house. He remembers it as his,
Remembers the walkway he built between the front room
And the garage, the rhododendron he planted in back,
The car he used to drive. He remembers himself,
A younger man, in a tweed hat, a man who loved
Music. There is no time for that now. No time for music,
The peculiar screeching of strings, the luxurious
Fiddling with emotion.
Other things have become more urgent.
Other matters are now of greater import, have more
Consequence, must be attended to. The first
Thing he must do, now that he is home, is decide who
This woman is, this old, white-haired woman
Standing here in the doorway,
Welcoming him in.

This poem tells a man who loses most of his memory. The speaker might be his daughter or granddaughter or a close family member, whoever she is(I suppose it's a she), she must love this man dearly, to be sure. She carefully describes every move of the man in detail, which shows how one slowly recollects his past and the things he loved. Every word is full of emotion and sympathy. However, when the man finally stands in front of his wife, the one who has always been there for him, he can not remember her. But that's ok, because she will patiently wait. So many years and challenges they have been through, nothing can stop her from loving him. So she will wait for him to come back one day, waiting for his embrace when she wakes up the next day.These are my comments on this poem. I was greatly touched by it. Though the language is plain, the emotion in it is very strong, leaving me a deep impression.