What the physiologists call the sensory nerves carry this impression inwards. But up to this there is no reaction. The nerve centre in the brain carries the impression to the mind, and the mind reacts, and as soon as this reaction comes, the pitcher flashes before it. Take a more commonplace example. Suppose you are listening to me intently and a mosquito is sitting on the tip of your nose and giving you that pleasant sensation which mosquitoes can give; but you are so intent on hearing me that you do not feel the mosquito at all. What has happened? The mosquito has bitten a certain part of your skin, and certain nerves are there. They have carried a certain sensation to the brain, and the impression is there, but the mind, being otherwise occupied, does not react, so you are not aware of the presence of the mosquito. When a new impression comes, if the mind does not react, we shall not be conscious of it, but when the reaction comes we feel, we see, we hear, and so forth. With this reaction comes illumination, as the Sâmkhya philosophers call it. We see that the body cannot illuminate, because in the absence of attention no sensation is possible. Cases have been known where, under peculiar conditions, a man who had never learnt a particular language was found able to speak it.