One looks with both eyes at the tip of the nose, sits upright in a comfortable position, and holds the heart to the centre in the midst of conditions. In Taoism, it is called the yellow castle, in Buddhism the centre of the midst of conditions. The two are the same. It does not necessarily mean the middle of the head. It is only a matter of fixing one’s thinking on the point between the two eyes. Then all is well. The light is something extremely mobile. When one fixes the thought on the mid-point between the eyes, the light streams in of its own accord. It is not necessary to direct the attention especially to the central castle. In these few words, the most important thing is contained. ‘The centre in the midst of conditions’ is a very subtle expression. The centre is omnipresent; everything is contained in it; it is connected with the release of the whole process of creation.
The Secret of the Golden Flower, Trans. Wilhelm, Richard
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