Try to understand one thing: impressions can be classified by hydrogens. Every impression is a certain hydrogen. We have spoken of impressions 48, but there may be much higher impressions. On the other hand impressions can belong also to the lower hydrogens of the third scale, down to the lowest. The most important thing in the division of matters in the hydrogen table is that it shows where each hydrogen comes from. Suppose you have a certain hydrogen to think about. Looking for its position in the table of hydrogens you can see that it has a definite place: it may come from the interval between the Absolute and the sun, or perhaps from a little above the sun, or from below the earth, between the earth and the moon, and so on. This possibility of placing hydrogens is an enormous advantage. At present you cannot appreciate the significance of the fact that in every matter we can know not only its density but also the level it comes from—its place in the whole scheme of things. Our science has no approach to this yet and does not realize that matters are different by reason of the place they come from. You must understand that H 12 has an enormous advantage over, say, H 1536, so an impression that comes from 12 is one kind of impression, and an impression that comes from below the earth, say from the moon, is of quite a different kind. One is light matter, full of quick vibrations, the other consists of slow, harmful vibrations. So if you find that an impression is heavy, unpleasant—it is difficult to find the right adjective to describe it—you can tell by this very fact that it comes from some low part of the Ray of Creation. Things that make you angry, make you hate people, or give you a taste of coarseness or violence, all these impressions come from low worlds.

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