With this question of sound in magical conjurations I have dealt at some length elsewhere. Suffice to remark here that in The Secret Doctrine Madame Blavatsky suggests that the vibratory use of conjurations and sound generally have a profound significance. "Sound and rhythm," she observes, "are closely related to the four elements . . . Such or another vibration in the air is sure to awaken corresponding powers, union with which produces good or bad results, as the case may be." The whole subject of sound, and the employment of so-called barbarous names of evocation, requires thoroughly to be studied before one dare suggest an explanation accusing either Magi or Lamas merely of a pose of wisdom. One notes with aroused attention too that the Tibetans have a form of what is called here in the Occident the Qabalistic Cross. On page 423 of his book, there is the following description: "Before commencing any devotional exercise, the higher Lamas perform or go through a manoeuvre bearing a close resemblance to 'crossing oneself' as practised by Christians. The Lama gently touches his forehead either with the finger or with the bell, uttering the mystic Om, then he touches the top of his chest, uttering Ah, then the epigastrium (pit of stomach)
uttering Hum. And some Lamas add Sva-ha, while others complete the cross