The Body of Light must be developed and trained with exactly the same rigid discipline as the brain in the case of mysticism. The essence of the technique of Magick is the development of the Body of Light, which must be extended to include all members of the organism, and indeed of the cosmos [...] The object is to possess a Body which is capable of doing easily any particular task that may lie before it. There must be no selection of special experience which appeals to one's immediate desire. One must go steadily through all possible pylons.