Every minute, we breathe in and out several times. It is the most natural movement we make, so much so that we forget about it. We mostly forget that we can breathe thanks to the trees on this planet. Oxygen is the natural waste of trees, and our natural waste – carbon dioxide – feeds the trees. Trees are also the most natural solution to climate change. In short, we live in a relationship of continuous dependence with the trees. During this walk we will meet some of the trees of the Sonian Forest, not as providers of wood or oxygen, but as the wise living creatures and master teachers they are.