237. These three degrees of height are called natural, spiritual, and celestial (as was said above, n. 232). When man is born he comes first into the natural degree, and this grows in him, by continuity, according to his knowledges and the understanding acquired by means of knowledges even to the highest point of understanding, which is called the rational. Yet not by this means is the second degree opened, which is called the spiritual. That degree is opened by means of a love of uses in accordance with the things of the understanding, although by a spiritual love of uses, which is love towards the neighbor. This degree may grow in like manner by continuous degrees to its height, and it grows by means of knowledges of truth and good, that is, by spiritual truths. Yet even by such truths the third degree which is called the celestial is not opened; for this degree is opened by means of the celestial love of use, which is love to the Lord; and love to the Lord is nothing else than committing to life the precepts of the Word, the sum of which is to flee from evils because they are hellish and devilish, and to do good because it is heavenly and Divine. In this manner these three degrees are successively opened in man.