Many people object they have tried to meditate in all kinds of ways but are still not becoming clairvoyant. This lack of clairvoyance simply shows they do not really want the activity and strength I have just described. They consider themselves fortunate because they do not need them. They do not want to develop any active strength of soul, but want to become clairvoyant without having to acquire this strength first. They want the tableau that arises before them through clairvoyance to appear by itself. But that would be nothing but hallucinating or dreaming.
To put it bluntly, a dream is a piece of the etheric world that we can take with our etheric feelers and move from one place to another. This has nothing to do with true clairvoyance. In experiencing true second sight we are as active as we are in the physical world in writing on paper. The only difference is that when we want to write in the physical world, we need first to know what it is we want to write down — at least it usually helps if we do. By contrast, in spiritual perception we allow the beings of the spiritual hierarchies to write, and only then, while we are writing, do the things appear that we are to perceive. Real clairvoyance cannot come about without our active involvement in every single aspect of our perception.
Source: Rudolf Steiner – GA 154 – UNDERSTANDING THE SPIRITUAL WORLD (PART ONE) – Berlin, April 18, 1914
Translated by Christian von Arnim and edited by Joachim Reuter