The repetition of this ‘Om’ and meditating on its meaning (is the way).
Why should there be repetition ? We have not forgotten that theory of ‘samskaras’ that the sum-total of impressions lives in the mind. Impressions live in the mind, The sum-total of impressions, and they become more and more latent, but remain there, and as soon as they get the right stimulus they come out. Molecular vibration will never cease. When this universe is destroyed all the massive vibrations Disappear, The sun, moon, stars, and earth, will meltdown, but the vibrations must remains in atoms. Each atom will perform the same function as the big world do. so the vibration of this chitta will subside, but will go on like molecular vibrations, and when they get the impulse will come out again.
We can now understand what is meant by repetitions ? It is greatest stimulus that can be given to the spiritual ‘samskaras’. One moment of company with the holy makes a ship to cross the ocean of life. such is the power of association. so this repetition of ‘OM’ and thinking of its meaning, is keeping good company in your own mind. study and then meditate and meditate, when you have studied. the light will come to you, the self will become manifest. But one must think of this ‘Om’ and of its meaning too. Avoid evil company because the scars of old wounds are in you, and this evil company is just the heat that is necessary to call them out. In the same way we are told that good company will call out the good impressions that are in us, but which have become latent. There is nothing holier in this world than to keep good company because the good impressions will have this same tendency to come to the surface.