XI. Who are the Rosicrucians?

That is one reason; another is that though a person is born from the astral world, that is from the spiritual world next to the physical, as much as he is born from the physical world, what he experiences there is completely different from anything seen with physical sight or heard with physical ears. One thing, however, is the same in all three worlds—in the physical, the astral or spiritual, and the devachanic world—and that is logical thinking. It is precisely because it is the same in all three worlds that it can be learned already in the physical world, and thus provide a firm support when we enter the other worlds. If one's thoughts are like will-o-the-wisps so that no distinction is made between what is merely depicted and reality, then one is not qualified to rise into higher worlds. This happens for example in modern physics when the atom, which no one has even seen, is spoken of as if it were a material reality.