Then there are the intuitive centers in this physical body of man, each center being a capacity. Few know about them, and they become clogged because man leads such a material life and consequently the intuitive faculties become blunted. All the mystical practices which are followed by the adepts are given in order that these capacities may be opened up and activated, may be put in order so that through them man may experience that which is meant to be experienced. It is lack of air and energy and magnetism which blocks these capacities and these centers; and it is this which blunts the intuitive faculties. Thus a person who never gives a thought to this question loses his intuitive faculties, and this itself shows that by thinking about something one produces a capacity, just as one does by action, by movement; and when that movement is dull, when it is not active, then this capacity remains unemployed.