Beata, you'd asked about a life in the wilderness. A long time ago, I had the same question. While in college, I worked a couple of Summers for the US Forest Service--maintaining trails in a wilderness area and fighting forest fires.
It was definitely a learning experience. One of several conclusions: Nature is a part of who I am, but I have intellectual needs as well.
When I was in better health, a day-hike once a week would almost satisfy my Nature Jones. I'm fortunate to live in California's Central Valley. During the Summer, the high country of the Northern Sierra Nevada Mountains is within driving range. The river canyons of the Sierra foothills (aka the Gold Country) are closer, and are best enjoyed during the cooler months. And the rugged coast North of San Francisco is an inspiration anytime.
Even though I don't hike as much as I used to, it's comforting to know that I can easily get away from it all when I really need to.