Is "what there is" all there is?

A great Jewish theologian of the twentieth century, Abraham Joshua Heschel once put it this way: “The grand premise of religion is that (human beings are) able to surpass (themselves),” that is, we are able to “lift our eyes and see” beyond the horizon of the mind, that we are able to see not just what is there but also that which “what is there” suggests, what it represents, what it points to that is real beyond itself.