These nine essays deal with various aspects of the general subject of mysticism. Some discuss its general theory and practice and others deal with its application as seen in the lives and works of the mystics, from the pagan Plotinus to the Christian contemplatives of our own day. Contents: essentials of mysticism; the mystic and the corporate life; mysticism and the doctrine of atonement; the mystic as creative artist; education of the spirit; place of will, intellect, and feeling in prayer; mysticism of Plotinus; three medieval mystics; mysticism in modern France.