Man facing himself, his environment, nature - his nature. Human nature. Nature is represented by a tree, regarded as a symbol of growth and life, as a link between sky and earth. It becomes a full-fledged person, as if human. It is like a vertebral column, rooted in earth, in man's history, thus emerging from man to pursue its ascent to the sky. The tree is also the idea man has of it - a man propelled up into the sky by means of tall supports, like prostheses creating a sort of green and blue cloud. It is a way to project one's own ambitions, a trunk plus a trunk… a human chain… he will reach to the sky. Also shown is a funny and ironic image of a childish character engaged in a round dance like children in a schoolyard.