for me this seems more like really nice prose than a poem, aside from the line breaks. I didn't feel like it was telling me anything other than what is written here, maybe you could pare it down?
Also, line one of stanza two should read shadows of yesterday bury themselves, not shadows of yesterday bury itself.
This is really well written, don't get me wrong. But why is it a poem?
"L'enfer, c'est les autres." --Sartre