It is possible to describe only approximately what these feelings are like. Indeed, everyone must arrive at his own conception of them as he passes through these inward experiences. He who has frequently fixes his attention on the phenomena of germinating, expanding, and flourishing, will feel something remotely allied to the sensation caused by witnessing a sunrise; and the phenomena of fading and decaying will produce in him an experience comparable, in the same way, to the gradual uprising of the moon on the horizon. Both these feelings are forces which, when carefully cultivated, with a continually increasing improvement, will lead to the greatest occult results. To him who again and again, systematically and with design, surrenders himself to such feelings, a new world is opened. The "Spiritual" world, the so-called "Astral plane," begins to dawn upon him. Blooming and fading are facts which no longer make indefinite impressions on him, as of old, but instead they form themselves into spiritual lines and figures of which he had previously suspected nothing. And these lines and figures have for the different phenomena different forms. A blooming flower, an animal growing, a decaying tree, evoke in his soul definite lines. The astral plane slowly broadens out before him. Its forms are not in any sense arbitrary. For two students who find themselves at the same stage of development will always see the same lines and figures under the same conditions. Just as certainly as a round table will be seen as round by two normal persons, not as round by the one and square by the other; so, too, before the perception of two souls a blooming flower will present the same spiritual form. And just as the shapes of animals and plants are described in ordinary natural history, so, too, the teacher in an occult school describes and delineates the spiritual forms of growing and decaying processes after their nature and species. If the student has progressed so far that he can see such aspects of phenomena which are also physically observable with his external eyes, he will then be not far from the condition which will enable him to behold things that have no physical existence, and must therefore remain entirely hidden to those who have undergone no training in an occult school. It should be emphasized that the occult explorer ought never to lose himself in speculation on the meaning of this or that. By such intellectualizing he only directs himself away from the right road. He ought to look out on the sense-world freshly, with healthy senses and quickened observation, and then to give himself up to his own sensations. He ought not to wish, in a speculative manner, to make out what this or that means, but rather to allow the things themselves to inform him.[7]