Everyone has their own agenda and reasons.
Some do it to get away from things and some do it to get back to things inside of themselves, some do it because as Mallory said, because its there.
For me, I do it for the physical strength and exhaustion. I dig the ability to get into really good shape in a few months and to smell fresh air and to be able to think and to ‘see’ what I have been overlooking in my own life, be it how I treat people, how I treat myself or any number of other things I come back to woods ot be healed for.
I like the lack of television and phones and internet and then lack of the attitudes of the worst kind that try to control and decide what is right and true for everyone around them, although this happens on the trails as well, and those people suck, but they do exist, only in much much smaller numbers.
I like drinking from a trickle off the teat of a mountain. I like waking to birds singing and the brisk sharp mountian air as the clouds rise away and the the sun finds its way onto my face.
I like that initial drip of sweat that drops over my brow and onto my nose letting me know I am once again working my body as it was meant to be worked.
More then words can say and much more then I can write here, its a healer. The best one ever.
Lion King