Engaged spirituality refers to religious or spiritual people who actively engage in the world in order to transform it in positive ways while finding nurturance, inspiration and guidance in their spiritual beliefs and practices. The term was inspired by engaged Buddhism, a concept and set of values developed by the Vietnamese Buddhist monk Thich Nhat Hanh. Engaged spirituality encompasses people committed to social change from all the major faith traditions as well as people who refer to themselves as "spiritual but not religious". It has numerous iterations in practice yet common themes unite the many forms it takes. For some in the Catholic tradition, liberation theology guides their form of engaged spirituality.