LIBER TVRRIS VEL DOMVS DEI SVB FIGVRA XVI o. This practice is very difficult. The student cannot hope for much success unless he have thoroughly mastered Asana, and obtained much definite success in the meditation-practices of Liber E and Liber HHH. On the other hand, any success in this practice is of an exceedingly high character, and the student is less liable to illusion and self—deception in this than in almost any other that We make known. [The meditation-practice in Liber E consisted in the restraint of the mind to a single predetermined imagined object exterior to the student, simple or complex, at rest or in motion: those of Liber HHH in causing the mind to pass through a predetermined series of states : the Raja-Yoga ofthe Hindus is mainly an extension of the methods of Liber Ε to interior objects: the Mahasatipatthana of the Buddhists is primarily an observation and analysis of bodily movements. While the present practice difi’ers radically from all of these, it is of the greatest advantage to be acquainted practically with each of them, with regard firstly to their incidental difficulties, and secondly to their ascertained results in respect of psychology. ΕΒ.] 1. First Point. The student should first discover for him- self the apparent position of the point in his brain where thoughts arise, if there be such a point. 11