The doctrine of paticca samuppada or dependent co-arising is fundamental to Buddhist ethics. In this vision of radical relativity, reality appears as an interdependent process wherein change and choice, doer and deed, person and community are mutually causative. Morality is grounded in this inderdependence, as in the corrollary Buddhist views of anatta and karma. Consequently it reveals a reciprocal dynamic between personal and social transformation, expressed in Buddhist scripture and illustrated in a contemporary Buddhist movement in Sri Lanka.