Invisible

Grouper
invisible
i've become invisible
a light shining through my skin
never so (??)
i find other things (?)
(???)
if you can see me, be sure i barely know
hold down my shadow
and tie down my sail
invisible
i've become invisible
a (?????)
be sure my (???)
(cant understand any of this part...)
this skin and this body, spirit's (??)
(??)
invisible
i've become invisible
or maybe your (arms?) are just spinning around(?)