Behind the common idea that a Yogi can know all things and answer all questions is the actual fact that there is a plane in the mind where the memory of everything is stored and remains always in existence. All mental movements that belong to the life of the earth are memorised and registered in this plane. Those who are capable of going there and care to take the trouble, can read in it and learn anything they choose. But this region must not be mistaken for the supramental levels. And yet to reach even there you must be able to silence the movements of the material or physical mind; you must be able to leave aside all your sensations and put a stop to your ordinary mental movements, whatever they are; you must get out of the vital; you must become free from the slavery of the body. Then only you can enter into that region and see. But if you are sufficiently interested to make this effort, you can arrive there and read what is written in the earth's memory.
(The Mother, 23 June 1929) <ref>http://incarnateword.in/cwm/03/23-june-1929#p9</ref>
No, you don't understand. To go to that place, at the time of going you must be able to completely silence the mind (and all the other things I have mentioned), but just for going there. For example, you decide: "Now, I am going to read such and such a chapter of earth's history", then you lounge comfortably in an easy-chair, you tell people not to disturb you, you go within yourself and completely stop your mind, and you send your mental messenger to that place.... It is preferable to have someone who can guide you there, because otherwise you can lose your way and go elsewhere! And then you go. It is like a very big library with many many small compartments. So you find the compartment corresponding to the information you wish to have. You press a button and it opens. And inside it you find a scroll as it were, a mental formation which unrolls before you like a parchment, and you read. And then you make a note of what you have read and afterwards return quietly into your body with the new knowledge, and you may transcribe physically, if you can, what you have found, and then you get up and start your life as before.... This may take you ten minutes, it may take one hour, it may take half an hour, it depends upon your capacity, but it is important to know the way, as I said, in order not to make a mistake.
(The Mother, 30 September 1953) <ref>http://incarnateword.in/cwm/05/30-september-1953#p6</ref>
== Silence in Self-Observation ==