I've read that an important part of zazen is to simply accept whatever happens to be there "without preferences;" I've noticed that consciously abandoning preferences when something unpleasant is there helps me sit with it--however, my question is, is that *really* "just sitting?" I mean, should I abandon even the preference not to prefer, or the conscious effort to abandon conscious effort? I get the feeling that I should let preference and no-preference just come and go like other thought-forms, but I wonder if there's any way to do that and not have zazen degenerate into a mess of likes and dislikes building on each other ad nauseam.