Book excerpt: Charismatic movements. Newer readers will find a fascinating entree into the heart of Moltmann's work: the transformative potential of the future. In an age of planetary peril, in a culture often hostile to human, animal, and plant life, Moltmann's emphatic insistence on the Spirit is a clear call to conscience: The one indispensable element for human survival, he asserts, is an "unconditional affirmation of life" quickened by the Spirit.