I don't know

I never knew that before,
not knowing even more,
needless to say it never arrived,
as nothing ever could have survived,
maybe there is another but i know not,
i can't remember or i have forgot,
why am i here if i am not there,
who can i have with me to share,
i could be lost but i know where it is,
as him is her and she is his,
maybe i am confused by that,
the upside down welcome mat,
no coins in my poor wealth,
as long as i have my less health