You may say that you know how to read. It is almost certain that you do not. If by reading you mean that you can run your eye over a page, and, barring a word here and there, get the general drift of the sense, you may perhaps qualify as able to read. If you are set the task of interpreting fully every phrase in an article by a thoughtful writer, the chances are that you will fail. When only a small part of a writer's meaning has passed from his mind to yours, you can hardly be said to have read what he has written. On the other hand, no one can get out of written words all that was put into them. What was written out of one man's experience must be interpreted by another's experience; and as no two people ever have exactly the same experience--no two people are exactly alike--it follows that no interpretation is ever entirely what the writer had in mind. The ratio between what goes into a book and what comes out of it varies in two ways. Granted the same reader, he will take only to the limit of his capacity from any book set before him: he may get almost all from a book that contains but little, a good share of a book that contains much, but very little of a book that is far beyond the range of his experience. Granted the same book, one reader will barely skim its surface, another will gain a fair idea of the gist of it, a third will almost relive it with the author. The main point is that this varying ratio depends upon the amount of life-experience that goes into the writing of a book and the amount of life-experience that goes into the reading of it. For as writing is the expression of life, so reading is vicarious living--living by proxy, reliving in imagination what the author has lived before he was able to write it. Hence, we grow _up to_ books, grow _into_ them, grow _out of_ them. Our growing experience of life may be measured by the books that we read; and conversely, as we cannot have all experience in our own lives, books are necessarily one of the most fruitful sources of growth in experience. This is true, however, only of what may be called vitalized reading--reading, not with the eyes alone, nor with the mind alone, but with the stored experiences of life, with the emotions that it has brought, with the attitudes toward men and things and ideas that it has given--in a word, with imagination. To read with imagination, you must be, in the first place, active; in the second place, sensitive, and, because you are sensitive, receptive. Instead, however, of being merely passively receptive of the stream of ideas and images and sensations flowing from the work you are reading, you must be alert to take all that it has to give, and to re-create this in terms of your own experience. Thus by making it a part of your imaginative experience, you widen your actual experience, you enrich your life, and you increase the flexibility and vital power of your mind.