Vision (the future we are trying to bring about, pictured), purpose or mission (why the organization exists, a contribution beyond serving shareholders and employees) and core values (how we act day to day on the way) together answer what we believe in; values must translate into concrete behaviors, and a vision inconsistent with lived values breeds cynicism.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.