Representing a concept, an idea, the simple natural illustration forms an intrinsic part of the model's uniqueness and global appeal.

The illustration found on the tetrahedron, the workbooks and certification guides, represent a concept, an idea - what we can learn from nature. It helps people to visualise how nature - and human nature works inter-dependently and not in isolation.

The illustration does not place you somewhere exactly, (i.e the Grand Canyon, a tropical island in the Pacific, or a lofty mountain in Asia) but rather suggests a more ordinary playful place we can all identify with, no matter where in the world we are, live or work.