Repetition of it and meditation on its meaning
Repetition (japa) of it and meditation (bhāvanā) on the Lord who is signified by OM. When the yogin thus repeats OM and meditates on its meaning, his mind becomes one-pointed. So it has been said:
After OM repetition, let him set himself in yoga,
After yoga, let him set himself to repetition.
When OM repetition and yoga come to perfection
The supreme self (paramātman) shines forth.
When the yogin has thus understood the relation of the expression OM and its meaning, how does he attract the grace of the supreme Lord? The sūtra says, Repetition of it and meditation on its meaning. Practice of repetition of OM, which is the expression of the Lord, taken as consisting of three-and-a-half measures (mātra) or of three measures, is called japa; the repetition is either mental or in a low voice (upāṃśu).
meditation on its meaning the meditation is setting the heart on the Lord, the meaning, who by the word OM has been recalled and brought into the mind. The words he should undertake are to be supplied at the beginning of the sūtra. Yogin-s who are doing both attain one-pointedness of mind. He illustrates how the one-pointedness is the result of that worship by quoting the verse.
After OM repetition after repetition of the praṇava syllable, his mind bowed before the Lord, let him set himself in yoga let him meditate on the Lord, its meaning. When his mind becomes unwavering from meditation on the Lord, the meaning, let him set himself to repetition let him repeat OM mentally. Mental repetition is recommended because it is closer to meditation (than is verbal repetition). The sense is that the mind must not run towards objects. When OM repetition and yoga come to perfection when he is not disturbed by other ideas contrary to them, he is perfect in repetition and in yoga; by that perfection in repetition and meditation on the supreme Lord (parameśvara) the supreme self (paramātman) who stands in the highest place (parameṣṭhin) shines forth for the yogin.
And what happens to him?