+I. The walk of the soul.+ "Let us walk." 1. _The moral walk of the soul is a necessity._ The soul of man is endowed with certain convictions and activities which render inaction an impossibility. It must walk either in one direction or another; either toward moral purity or moral evil; either to Christ or to Satan. The moral sensibilities with which it is gifted, the laws under which it is placed, the influences to which it is subject and the prospects that are stretched out before the soul, render moral progress a necessity of being. 2. _The moral walk of the soul is educational._ Men gain knowledge in this world by travel. In this way they augment their mental stores. And the soul gains knowledge, strengthens its capabilities, and deepens its experience, by walking forth into the great moral universe in which it lives. Only the souls that have walked in the paths of truth and life know what things are, and they only are able to guide others. 3. _The moral walk of the soul is healthful._ Those who are inactive are always physically weak. The soul that never takes moral exercise, that never gets out into the broad acres of truth, and that never climbs the great mountains of God, will ever be sickly. If the soul is to be strong, equal to the duties of life, and to the demands of being, it must not indolently repose in its own quiet hiding-place. It must go forth to meet the External. 4. _The moral walk of the soul is often perilous._ The traveller has often to walk through dark places, along difficult paths, and near the deep precipice. He is in a strange country. And so in the walk of the soul. It is in a land of which it knows but little. It has to pass through the dark mystery of truth, to traverse the windings of intricate problems, and to find its way, through perplexing circumstances, to the throne of God.