One way to mark it out easily is to say what aspects of the subject we leave out. At the outset we are struck by one great partition which divides the religious field. On the one side of it lies institutional, on the other personal religion. As M. P. Sabatier says, one branch of religion keeps the divinity, another keeps man most in view. Worship and sacrifice, procedures for working on the dispositions of the deity, theology and ceremony and ecclesiastical organization, are the essentials of religion in the institutional branch. Were we to limit our view to it, we should have to define religion as an external art, the art of winning the favor of the gods. In the more personal branch of religion it is on the contrary the inner dispositions of man himself which form the centre of interest, his conscience, his deserts, his helplessness, his incompleteness. And although the favor of the God, as forfeited or gained, is still an essential feature of the story, and theology plays a vital part therein, yet the acts to which this sort of religion prompts are personal not ritual acts, the individual transacts the business by himself alone, and the ecclesiastical organization, with its priests and sacraments and other go‐betweens, sinks to an altogether secondary place. The relation goes direct from heart to heart, from soul to soul, between man and his maker. Now in these lectures I propose to ignore the institutional branch entirely, to say nothing of the ecclesiastical organization, to consider as little as possible the systematic theology and the ideas about the gods themselves, and to confine myself as far as I can to personal religion pure and simple. To some of you personal religion, thus nakedly considered, will no doubt seem too incomplete a thing to wear the general name. “It is a part of religion,” you will say, “but only its unorganized rudiment; if we are to name it by itself, we had better call it man’s conscience or morality than his religion. The name ‘religion’ should be reserved for the fully organized system of feeling, thought, and institution, for the Church, in short, of which this personal religion, so called, is but a fractional element.” But if you say this, it will only show the more plainly how much the question of definition tends to become a dispute about names. Rather than prolong such a dispute, I am willing to accept almost any name for the personal religion of which I propose to treat. Call it conscience or morality, if you yourselves prefer, and not religion—under either name it will be equally worthy of our study. As for myself, I think it will prove to contain some elements which morality pure and simple does not contain, and these elements I shall soon seek to point out; so I will myself continue to apply the word “religion” to it; and in the last lecture of all, I will bring in the theologies and the ecclesiasticisms, and say something of its relation to them.