This document discusses the relationship between lights and shadows in society. It defines lights as representing positive qualities like happiness, love, and justice, while shadows characterize limitations and temptations. The document then gives examples of lights in society such as housing for the poor and medical missions, and examples of shadows like pollution, destruction of nature, and corruption. It argues that lights and shadows are interdependent and necessary for progress, and that by consciously engaging with these contrasts, individuals and society can be transformed.