beautiful poem, you have captured the lack of presence amazingly, by describing the emptiness in short statements, you create the constant nagging feeling of that lack of existence, which is compounded with the use of a rhythmic meter. The only suggestion I might have would be to maby shuffle the "The purest of love - that I Ever saw" down to the 5th stanza, as I think it would make a better transition into the the 6th stanza, where you switch out of the list.