There is an extraordinary amount of wrong thinking in our day. One can suffer the pains of martyrdom from the terribly illogical life of the world. Anyone who has acquired a certain clairvoyance does not simply feel that one thing is correct and another incorrect, but he suffers actual pain when confronted by illogical thinking, and a sense of well-being in connection with clear, transparent thinking.
This signifies that he has acquired a feeling for such things, and this enables him to make decisions. And this brings far truer differentiations when one has actually reached this stage. It gives a far truer discrimination between truth and untruth. This seems incredible, but it is true.
When something erroneous is said in the presence of a clairvoyant person, the pain which rises in him shows him that this is illogical, erroneous. Illogical thinking is extraordinarily widespread; at no time has illogical thinking been so widespread as precisely in our time, in spite of the fact that people pride themselves so much on their logical thinking.
Source: Rudolf Steiner – GA 130 – Esoteric Christianity and the Mission of Christian Rosenkreutz – Lecture 2 – Leipzig, 5th November 1911