I conjectured, and truly as I afterward learned, that I was in my friend's private sanctuary. It was his spiritual lavatory, in which he made daily ablutions. A service in which the soul lays aside the forms necessary in public worship and stands unveiled before its God. It was a rare honor he paid me, in permitting me to accompany him. And he repeated it every morning during my stay in his house, except on one or two occasions. It speedily became almost a necessity to me. You know how it is when you have formed a habit of exercising your muscles in a gymnasium. If you leave it off, you are uncomfortable, you have a feeling that you have cheated your body out of its right. It was so with me, when for any reason I was obliged to forego this higher exercise. I was heavy in spirit, my conscience accused me of a wrong to one of the "selfs" in me,--for we have several selfs, I think. There was not always music. Sometimes a wonderful voice chanted psalms and praises, and recited poems that troubled the soul's deepest waters. At first I did not understand the words, of course, but the intonations spoke to me the same as music does. And I felt that I knew what the words expressed. Often there was nothing there but The Presence, which hushed our voices and set our souls in tune with heavenly things. No matter, I was fed and satisfied. At the end of a sweet half-hour, the music died away, and we rose and passed out of the sacred place. I longed to question Severnius, but was powerless. He led the way down into the library, which was just off the wide entrance hall. Books were ranged round the walls on shelves, the same as we dispose ours. But they were all bound in white cloth or white leather. The lettering on the backs was gold. I took one in my hand and flipped its leaves to show Severnius that I knew what a book was. He was delighted. He asked me, in a language which he and I had speedily established between ourselves, if I would not like to learn the Marsian tongue. I replied that it was what I wished above all things to do. We set to work at once. His teaching was very simple and natural, and I quickly mastered several important principles.