Peter Meinke's Untitled Poem

Hi everyone! Just want to ask for your help in analyzing this poem for a paper I have to do. Basically, I need to know what the entire poem means, what the symbols are, etc. I have my own analysis already but I don't quite understand the latter half of the poem that well. Thank you in advance!

Untitled by Peter Meinke

This is a poem to my son Peter
whom I have hurt a thousand times
whose large and vulnerable eyes
have glazed in pain at my ragings
thin wrists and fingers hung
boneless in despair, pale freckled back
bent in defeat, pillow soaked
by my failure to understand.
I have scarred through weakness
and impatience your frail confidence forever
because when I needed to strike
you were there to hurt and because
I thought you knew
you were beautiful and fair
your bright eyes and hair
but now I see that no one knows that
about himself, but must be told
and retold until it takes hold
because I think anything can be killed
after awhile, especially beauty
so I write this for life, for love, for
you, my oldest son Peter, age 10,
going on 11.

(Peter Meinke)

Good perception, Bob. My thoughts exactly. I think the whole poem is about regret and remorse.
Maybe, the recognition of the father's actions on the child. Good poem.

Jeannie