There is a story about the Buddha being asked where a temple should be built. He pointed toward the ground, and a blade of grass sprouted up, marking the spot.
Another story is that he was asked what a robe should look like, and he pointed toward a rice field and said, "like that."
A common interpretation of these actions is that everywhere is sacred. This misinterpretation shows how our Western minds generalize. I think he meant that this place "here" is sacred, as is this moment. Let's not go anywhere else. Be here and now... for that's all that exists, and, as my teacher reminded me the other day, even the here and now only exists in our minds.
Dogen is said to have said that there is no place to spit (because everything is sacred). I tried to find this quote in his writing but could not. I wonder if he just meant that you should not spit here, for this spot is sacred.
What is it about us that wants to form opinions? Why is it not enough to stay with what we have in front of us. One problem with generalizing is that we've left the planet and have gone into our minds. Which is probably what my Western mind is doing now.