OAK TREE AND LIMBS
This silhouette of a tree pained on weathered fence board is from the giant oak trees of southern Louisiana where limbs touch the ground and children run up them. I climbed these and was convinced that the roots connected to those limbs. Later in life, I used the same image to explain interconnectedness, where all knowledge relates at the tips of branches. In both ideas there's a reliance on metaphorical expression through nature to reduce complexity.
“Nature, as a rich taxonomy of species and forms, provide a vast metaphorical tapestry for the creation of diverse and complex differentiations.”
(The Biophilia Hypothesis, Kellert & Wilson, 1993).