A relation to reality that is outside of thought and so inaccessible to thought, thought here meaning to cover all forms of representation. But you have to ask yourself if such a relation is possible and by doing so you would reduce it to something thinkable, to some relation that you can model or represent to yourself. If there was never any need to go beyond thought, or for the beyond of thought, closer in, that is than any thought, then this would be an idle speculation, but it is just the way that thought stammeringly admits its dependence, it lack of anywhere to stand.