The fascination that Teilhard de Chardin exercise upon the modern imagination is based, as a torrent of books tell us, upon the fact that Teilhard's entire thought represents a unique effort to effect a synthesis between Christianity and the spirit of our age; that is, to outline a truly unified, holy, catholic religion by taking into account the total requirements of the human personality. This collection of essays is designed to illustrate that phenomenon under the aspect of spirituality of Teilhard's ""theology of human endeavor,"" as Robert Faricy calls it in the introductory essay. It is a theology characterized in the second chapter (""The Continuity of Matter and Spirit"" by Christopher Mooney) by an emphasis on the personal, the material, and the relative. The theme is repeated and developed in the remaining six essays with varying degrees of success and authority, the zenith and nadir of which are represented respectively by Robert O'Connell's ""The Sacramental Eye"" and Sister Emily Binns' ""The Mystery of the Church."" On the whole, an interesting addition to the library of the theological professional or student.