"In the study of the ideas outlined in this book and their careful consideration certain basic concepts are borne in mind: First, that the matter of prime importance to each student is not the fact of a particular teacher's personality but the measure of truth for which he stands, and the student's power to discriminate between truth, partial truth, and falsity. Second, that with increased esoteric teaching comes increased exoteric responsibility. Let each student with clarity therefore take stock of himself, remembering that understanding comes through application of the measure of truth grasped to the immediate problem and environment, and that the consciousness expands through use of the truth imparted. Third, that a dynamic adherence to the chosen path and a steady perseverance that overcomes and remains unmoved by aught that may eventuate, is a prime requisite and leads to the portal admitting to a kingdom, a dimension and a state of being which is inwardly or subjectively known. It is this state of realisation which produces changes in form and environment commensurate with its power. These three suggestions will merit a close consideration by all, and their significance must be somewhat grasped before further real progress is possible. Introductory Remarks"