Many people try hard to see spirits or the activities of spirits, but they want to see them just as they see physical things. They want to see a spirit, but this spirit is expected to have the form of a man or a woman or perhaps a poodle, as these are seen in the physical world. In the other world, however, it is not like this. The process itself lies outside the ordinary consciousness and what enters into the consciousness is at most a picture, an image which appears afterwards. In short, we must not expect the spiritual world to be merely a kind of finer sense-world, nor that it will speak in human words, the only difference being that the words come from the spiritual world. Our friends are often only willing to listen in this way to voices which seem to speak to them; these voices are expected to be similar to those of the physical world, merely giving a different, subtler version of things of the physical world. These people would like to enter the spiritual world with the ordinary consciousness which belongs to the physical world only.
Source: Rudolf Steiner – GA 254 – The Occult Movement in the Nineteenth Century: Lecture Ten – Dornach, 25th October 1915
Translated by Dorothy S. Osmond