On the beach, at dawn;
four small stones clearly
hugging each other.
How many kinds of love
might there be in the the world,
and how many formations might they make
And who am I ever
to imagine I could know
such a marvelous business?
~ Mary Oliver from "On the Beach" in SWAN: POEMS AND PROSE POEMS
Without going outside, you may know the whole world. Without looking through the window, you may see the ways of heaven. The farther you go, the less you know.
Thus the sage knows without traveling ... sees without looking ... works without doing.