Draft 2 - O Martyr

[busker]

O Martyr

I know why the wind is without birdsong 
and mothers humming
infants to milk-drunken sleep. .... a somewhat conventional beginning. The wind without birdsong and 'milk-drunken sleep' are both cliched
I have seen enough, how it could all end
in an instant, or an instant's
aftermath. My voice forms words .... powerful
you cannot hear; I'm scared that
I’m too far away to know their gravity, or
the pull of home beneath my feet. .... excellent development
Though in your heart I've hid .... 'in your heart' is cliched. 
this sadness, an unflinching pact ... generally, adjectives weaken. 'Unflinching' is not necessary.
to earth that I'd return to see .... 'with' instead of 'to'?
through your garb of existence .... here the metaphor is getting confused. You don't 'see' through a garb. Maybe 'veil' or something more apt
and struggle, its memory is faded. Then,
I was not sure I hid anything at all. 
Whoever it was I was, I am
called by light to bloom
and how these roots run deep. .... good ending

This is a powerful poem, but needs to be tighter IMO