Understanding Safety, Connection, and the Foundations of Development When we look at behavior, participation, and learning, it can be tempting to begin with what we see. But development does not begin at the surface. It begins beneath it. The ground  of the From Roots to Fruit, The Integrated Interoception Tree Model™ represents the foundation that supports everything else. Before a child can engage, regulate, plan, or participate, the nervous system must first experience a s