In Soto style, we ‘face the wall‘ … we sit with our backbone at the center of the Zafu, perhaps slightly forward … back straight, as if a tiny thread were running to the ceiling through the crown of the head … give that thread a small tug, ever so slightly, to stretch the neck and pull the chin in … your eyes should be 1/3 or 2/3 open (my teacher says naturally and fully open though … the point is to remain present in this world and not drift into some dreamy state) … gazing at a downward angle to the wall (or floor if that is all you have) …