515. In the fourth sphere the scenery is characterized by still more beautiful landscapes: the grass appears of a greener green, and the flowers are more gorgeous in their hue, and the birds sing still more sweetly. Shall I lead you to this parterre? Here you perceive the lily with its almond-shaped leaves, and stamens delicately tinted with the faintest crimson; by its side is the blushing rose. Here you observe the myrtle, the emblem of love, and the passion-flower, which speaks of a deathless passion. All have an interior language which spirits alone can fully comprehend. The trees here are somewhat different from those on earth. This is a strange-looking one. Its trunk is very straight, and runs up to an immense height without branches; its top is surmounted by tufts of beautiful spiral-shaped silvery leaves; by its side stands one of very different appearance, whose depending branches, like the graceful willow, bend beneath their wealth of leaves, courting one to repose beneath their grateful shade. Here, too, are sparkling streams, murmuring cascades, and gushing fountains, and trees bending beneath their load of golden fruit; and here are temples devoted to the arts and sciences. 516. Now, dear father, let not a school on earth rise up before your imagination. Our schools and systems of instruction differ widely from those in the rudimental sphere, inasmuch as they are far more beautiful. We use neither books nor charts, but the spirit or substance of each subject is presented to the student, whose mind at once perceives its internal meaning. In this way are solved the most difficult problems. 517. Let us enter this building devoted to the teachers from the seventh sphere. See the multitude thronging its portals. Before we enter, let us glance at its exterior. It is circular in form, and beautiful in its architectural design. Its spiral columns are entwined with the richest flowers, which yield a delicious fragrance. As you enter this temple, its fretted vaults resound with the soft harmonious symphonies of spirit voices. In the midst of the group stands the teacher, Melancthon, who suffered in the cause of religious freedom. His countenance is mild and angelic, but he still retains that fearless spirit which characterized him on earth. 518. Here comes a band of beautiful children carrying wreaths of flowers in their hands. They are singing, and they lead by the hand a lovely child just escaped from earth. How happy it seems! It is quite unconscious of the change in its condition.