The whole thing is worth quoting:

"Excerpt of a seven-hour endurance performance transfigured into a time-based, conceptual sound-video presentation. The video reflects the performance in real time--on September 16, 2009, from 1 pm to 8 pm. The five clips presented are in sequential order; their lightness or darkness has nothing to do with chronology. The video's soundscape consists of field recordings taken by the artist as well as real-time recordings of the artist's labor in creating this piece, all of which are then further composed and montaged. What happens when one fits oneself into the earth in the ardent attempt to turn sylvan?"

Also the "performance art" tag at vimeo is a treasure trove of evil