Trees are such sacred creatures on planet earth that is tough to quantify all that they do. In the Introduction to Permaculture book, Mollison presented the three ethics but quietly tied in the life ethic as well. It is vastly important to remember this as we work within systems that are beyond this material (matter), dualistic world rather a universe that is interlaced with patterns and mandalas of space and time of extreme complexity. Therefore, trees themselves will always be fantastic representatives of the life ethic, they are above alive, and co-creators in nature.
I'm a lumberjack and I'm okay, I sleep all night and work all day. Tiny lumberjack ad:
World Domination Gardening 3-DVD set. Gardening with an excavator. richsoil.com/wdg