Led into Mystery is an unanticipated sequel to John de Gruchy's book Being Human: Confessions of a Christian Humanist. It was prompted by the untimely and tragic death of his eldest son, Steve, in February 2010, and the questions this posed about the meaning of life and death from the perspective of Christian faith. A further prompt came as a result of a multi-disciplinary research project on "the humanist imperative in South Africa" (2009-2010). This raised critical questions about being human from the perspective of science, especially neuroscience, as well as other faith and secular perspectives. All these inform the discussion which is an exploration of mystery on the boundaries of human knowledge and experience, engagement with the world and the evolution of consciousness from a specifically Christian theological perspective. The title derives from Karl Rahner's comment that theology is about being led back into mystery -- the ultimate mystery of God disclosed in the life, death and resurrection of Jesus and the creative presence of the Spirit in the life of the world. This mystery is an open secret waiting to be explored, expressed and entered into by faith. In doing so, we discern the fragmentary mystery of being human alone and in relationship within the constraints of our time and space. We are rudely encountered by the perplexing mysteries of evil and death, but embraced by the mysteries of goodness and beauty, hope and love. We draw on memory and imagination to develop a language that enables us to explore mystery through the genre of myth, parable, poetry, the novel, music and art, we participate in the mysteries of faith that communicate grace, forgiveness, and freedom which enable us to be more fully human in the life of the world in the struggles for justice and peace.