32 The best way to time the breathing, once some little skill has been acquired, with a watch to bear witness, is by the use of a mantra. The mantra acts on the thoughts very much as Pranayama does upon the breath. The thought is bound down to a recurring cycle; any intruding thoughts are thrown off by the mantra, just as pieces of putty would be from a fly-wheel; and the swifter the wheel the more difficult would it be for anything to stick. This is the proper way to practise a mantra. Utter it as loudly and slowly as possible ten times, then not quite so loudly and a very little faster ten times more. Continue this process until there is nothing but a rapid movement of the lips ; this movement should be continued with increased velocity and diminishing intensity until the mental muttering completelyabsorbs the physical. The student is by this time absolutely still, with the mantra racing in his brain; he should, however, continue to speed it up until he reaches his limit, at which he should continue for as long as possible, and then cease the practice by reversing the process above described. Any sentence may be used as a mantra, and possibly the Hindus are correct in thinking that there is a particular sentence best suited to any particular man. Some men might find the liquid mantras of the Quran slide too easily, so that it would be possible to continue another train of thought without disturbing the mantra; one is supposed while saying