Many persons do, however, remember that they have lived before. Poets have sung of this, children know it well, until the constant living in an atmosphere of unbelief drives the recollection from their minds for the present, but all are subject to the limitations imposed upon the Ego by the new brain in each life. This is why we are not able to keep the pictures of the past, whether of this life or the preceding ones. The brain is the instrument for the memory of the soul, and, being new in each life with but a certain capacity, the Ego is only able to use it for the new life up to its capacity. That capacity will be fully availed of or the contrary, just according to the Ego’s own desire and prior conduct, because such past living will have increased or diminished its power to overcome the forces of material existence. By living according to the dictates of the soul the brain may at last be made porous to the soul’s recollections; if the contrary sort of a life is led, then more and more will clouds obscure that reminiscence. But as the brain had no part in the life last lived, it is in general unable to remember. And this is a wise law, for we should be very miserable if the deeds and scenes of our former lives were not hidden from our view until by discipline we become able to bear a knowledge of them. Another objection brought up is that under the doctrine of reïncarnation it is not possible to account for the increase of the world’s population. This assumes that we know surely that its population has increased and are keeping informed of its fluctuations. But it is not certain that the inhabitants of the globe have increased, and, further, vast numbers of people are annually destroyed of whom we know nothing. In China year after year many thousands have been carried off by flood. Statistics of famine have not been made. We do not know by how many thousands the deaths in Africa exceed the births in any year. The objection is based on imperfect tables which only have to do with western lands. It also assumes that there are fewer Egos out of incarnation and waiting to come in than the number of those inhabiting bodies, and this is incorrect. Annie Besant has put this well in her “Reïncarnation” by saying that the inhabited globe resembles a hall in a town which is filled from the much greater population of the town outside; the number in the hall may vary, but there is a constant source of supply from the town. It is true that so far as concerns this globe the number of Egos belonging to it is definite; but no one knows what that quantity is nor what is the total capacity of the earth for sustaining them. The statisticians of the day are chiefly in the West, and their tables embrace but a small section of the history of man. They cannot say how many persons were incarnated on the earth at any prior date when the globe was full in all parts, hence the quantity of egos willing or waiting to be reborn is unknown to the men of to-day.