Book excerpt: Over the past half century the issues facing activists have changed, as has our understanding and awareness of spirituality. For activists, spiritual philosophy is rising up the agenda because it offers distinct, tried and tested approaches to deep questions: Where did it all go wrong? What does it mean to be human? What is the place of leadership? What is the nature of power? The book begins by defining spirituality for a modern audience of all faiths and beliefs, and goes on to consider the problems and necessities of true leadership. Drawing on a rich history of spirituality and activism, from The Bhagavad Gita, to the Hebrew prophets, to Carl Jung, it is both guide and inspiration for people involved in activism for social or environmental justice. The text is enriched with tales from the authors' own experiences. It contains case studies of inspirational spiritual activists (including Mama Efua, Desmond Tutu, Gerrard Winstanley, Sojourner Truth and Julia Butterfly Hill), which demonstrate the transformative power of spiritual principles in action.