Related topics: Concentration
Knowledge can only come by conscious identity, for that is the only true knowledge,―existence aware of itself.
Generally it comes through interest and a special attraction for a subject ― Mother's note. 
There is always some kind of unconscious identification with the surrounding people and things; but by will and practice one can learn to concentrate on somebody or something and to get consciously identified with this person or this thing, and through this identification you know the nature of the person or the thing.
20 May 1955 
...all knowledge is knowledge by identiﬁcation. That is, one must become that which one wants to know. One may surmise, imagine, deduce, one may reason, but one does not know.
So it is something difﬁcult for human beings?
One can learn how to identify oneself. One must learn. It is indispensable if one wants to get out of one’s ego. For so long as one is shut up in one’s ego, one can’t make any progress.
How can it be done?
There are many ways. I’ll tell you one.
When I was in Paris, I used to go to many places where there were gatherings of all kinds, people making all sorts of researches, spiritual (so-called spiritual), occult researches, etc. And once I was invited to meet a young lady (I believe she was Swedish) who had found a method of knowledge, exactly a method for learning. And so she explained it to us. We were three or four (her French was not very good but she was quite sure about what she was saying!); she said: “It’s like this, you take an object or make a sign on a blackboard or take a drawing —that is not important —take whatever is most convenient for you. Suppose, for instance, that I draw for you... (she had a blackboard) I draw a design.” She drew a kind of half-geometric design. “Now, you sit in front of the design and concentrate all your attention upon it —upon that design which is there. You concentrate, concentrate without letting anything else enter your consciousness —except that. Your eyes are ﬁxed on the drawing and don’t move at all. You are as it were hypnotised by the drawing. You look (and so she sat there, looking), you look, look, look.... I don’t know, it takes more or less time, but still for one who is used to it, it goes pretty fast. You look, look, look, you become that drawing you are looking at. Nothing else exists in the world any longer except the drawing, and then, suddenly, you pass to the other side; and when you pass to the other side you enter a new consciousness, and you know.”
We had a good laugh, for it was amusing. But it is quite true, it is an excellent method to practise. Naturally, instead of taking a drawing or any object, you may take, for instance, an idea, a few words. You have a problem preoccupying you, you don’t know the solution of the problem; well, you objectify your problem in your mind, put it in the most precise, exact, succinct terms possible, and then concentrate, make an effort; you concentrate only on the words, and if possible on the idea they represent, that is, upon your problem —you concentrate, concentrate, concentrate until nothing else exists but that. And it is true that, all of a sudden, you have the feeling of something opening, and one is on the other side. The other side of what?... It means that you have opened a door of your consciousness, and instantaneously you have the solution of your problem.
It is an excellent method of learning “how” to identify oneself.
Can the Divine be attained in this way?
You know, the only way of knowing the Divine is by identifying oneself with Him. There is no other, there is only one, one single way. Hence, once you are master of this method of identiﬁcation, you can identify yourself. So you choose your object for identiﬁcation, you want to identify yourself with the Divine. But so long as you do not know how to identify yourself, a hundred and one things will always come across your path, pulling you here, pulling you there, scattering you, and you will not be able to identify yourself with Him. But if you have learnt how to identify yourself, then you have only to direct the identiﬁcation, place it where you want it, and then hold on there until you get a result. It will come very fast if you are master of your power of identiﬁcation. Yes, it will come very quickly. Ramakrishna used to say that the time could vary between three days, three hours and three minutes. Three days for very slow people, three hours for those who were a little swifter, three minutes for those who are used to it.
Three days for very slow people?
For very slow people, yes. He was asked: “How long does it take one to get identiﬁed with the Divine?” that was his answer.
And that means three days without doing anything?
No, not without doing anything. It is not necessary to do nothing simply in order to be identiﬁed with the Divine. Evidently you cannot remain seated motionless for three days without doing anything; it would mean you had already attained an extraordinary degree of perfection if you could do that —forget all your needs and remain motionless for three days. No, it is not that he means; the thought must be concentrated solely on the Divine. And he did it before that person, to show him, prove to him that what he was saying was true. That did not take him more than three minutes.
But it is just that, what hinders the experience is the absence of the practice of concentration, and also the absence of one pointedness, singleness of purpose, of will. One “wants” it for a minute, two minutes, ten minutes, a quarter of an hour, an hour, and afterwards, one wants many other things.... One “thinks” about it for a few seconds, and after that thinks of a thousand other things. So naturally in this way you could take an eternity. For indeed, in this you cannot add up; if it could be accumulated like grains of sand, if with every thought you give to the Divine you place a little grain of sand somewhere, after a time this would make a mountain. But it is not like that, it does not remain. It has no result. It does not accumulate, you cannot go on adding, cannot progress quantitatively —you can progress in intensity, progress qualitatively. Yes, you can learn within yourself how to do it; but what you have done counts only in this way. It does not get accumulated like grains of sand on a dune. Else it would be enough to become quite clever and tell yourself: “Well, I shall give at least a dozen thoughts to the Divine every day.” And then, by little bits like that, after some time one has a little hill.... 
- Sri Aurobindo, The Life Divine, SABCL, Vol. 18, p. 213.
- The Mother. cwm/14/concentration
- The Mother. cwm/14/concentration
- The Mother. (1978). Questions and Answers 1953. In Collected Works of the Mother Volume 5(pp. 217-218, 223-224).The Mother. (1978). Questions and Answers 1953. In Collected Works of the Mother Volume 5 (pp. 217-218, 223-224).