Forest Wat Wild Monks

"When we speak of the Lord Buddha, never forget that he was born outdoors, awakened outdoors, realized nibbana outdoors, taught outdoors, lived outdoors, had a hut with an earthen floor, and so on. We give it as much of a try as we can. Even now, we see that we're sitting on the ground, which is much different than in the city wats. There they sit on wooden floors, on mats, on carpets, depending on the status of each wat. Some wats spread expensive carpeting in the temple building for all eternity. So they sit in their chapels on carpets. Here, we sit on the seat of the Buddha -- the ground. This is one example for you to understand what nature is like, and how different it is from the cities, and how different are the hearts of those who come sit and interact with Nature.
I've tried my best in this matter. When Suan Mokkh was first started, I slept on the ground. I slept next to the grasses in order to know their flavor. I used to sleep on the beach, too. Then, when I first slept in the "middle hut" after it was newly built, I would stretch my hand out the window to fondle the plants next to the window. This completely different feeling is the meaning of 'forest wat wild monk.' - Thai Forest Monk Buddhadasa Bhikkhu

http://www.suanmokkh.org/archive/arts/wildmnk2.htm