Selection from Arcana Coelestia ~ Emanuel Swedenborg
Truths are said to be impressed on the life, when they become of the will and from this of the act. So long as they stay merely in the memory, and so long as they are looked at only intellectually, they have not been impressed on the life; but as soon as they are received in the will, they become of the life, because the very being of man's life is to will, and from this to act; and before this they have not been appropriated to the man.That "to write" denotes to impress on the life, is because the purpose of writings is remembrance to all posterity. So is it with the things impressed on a man's life.
Man has as it were two books, in which have been written all his thoughts and acts. These books are his two memories, the exterior and the interior. The things written on his interior memory remain to all eternity, and are never blotted out, and are chiefly those which have become of the will, that is, of the love; for the things of the love are of the will. It is this memory which is meant by every man's book of life.
(Arcana Coelestia 9386)