Method Of Acquiring Knowledge
All the great prophets, saints, and the seers of the world what did they do? In one span of life, they lived the whole life of humanity, traversed the whole length of time that it takes the ordinary humanity to come to perfection. In one life, they perfect themselves; they have no thought for anything else, never live a moment for any other idea, and thus the way is shortened for them. This is what is meant by concentration, intensifying the power of assimilation, thus shortening the time.
The more this power of concentration, the more knowledge is acquired, because this is the one and only method of acquiring knowledge. Even the lowest shoeblack, if he gives more concentration, will black shoes better; the cook with concentration will cook a meal all the better. In making money, or in worshipping God, or in doing anything, the better the power of concentration, the better will that thing be done. This is the one call, the one knock, which opens the gates of nature, and lets out the floods of light.
How has all the knowledge in the world been gained but the concentration of the powers of mind? The world is ready to give its secrets, if we only know how to knock, how to give it the necessary blow. The strength and force of the blow come through concentration. There is no limit to the power of the human mind. The more concentration it is, the more power is brought to bean on one point; that is the secret.-Swami Vivekananda.