Mystery is that which shows itself and
at the same time withdraws.
I have met with but one or two persons in the course of
my life who understood the art of Walking, that is, of taking
walks, — who has a genius, so to speak, for sauntering:
which word is beautifully derived "from idle people who
roved about the country, in the Middle Ages, and asked
charity, under pretence of going á la Sainte Terre," to the
Holy Land, till the children exclaimed, "There goes a
Sainter-Terrer," a Saunterer, — a Holy Lander...
Of course it is of no use to direct our steps to the woods,
if they do not carry us thither. I am alarmed when it
happens that I have walked a mile into the woods bodily,
without getting there in spirit... The thought of some work
will run in my head, and I am not where my body is — I
am out of my senses. In my walks I would fain return to my senses…
~ Henry David Thoreau in WALKING