One may ask how we can understand this from a practical, a scientific point of view. The answer is that external things are not in direct connection with us, and so they are often unattainable by us. We can sometimes attain our wish, although frequently we fail; but in seeking the kingdom of heaven we seek the center of all, both within and without, for all that is in heaven or on earth is directly connected with the center. In this way we are able to reach all that is on earth and in heaven from the center; but whatever we seek which is not at the center may be snatched away from us.