This book completes Fr. Dennis J. Billy's acclaimed trilogy on Alphonsian spirituality. Drawing on theology, history, and pastoral insight, Fr. Billy explores how mission flows from God's own life of love and finds concrete expression in preaching, sacrament, community, and service to the poor and most abandoned. Rooted in tradition yet attentive to today's Church, this work invites readers to rediscover missionary discipleship as a lived spirituality for our time.