[11] Sixth: _Everything confirmed by the will and at the same time by the understanding remains to eternity, but not what is confirmed only by the understanding._ For what pertains to the understanding alone is not within man but outside him; it is only in the thought. Nothing enters man and is appropriated to him except what is received by the will; then it comes to be of his life's love. This, it will be shown in the next number, remains to eternity. 319. Everything confirmed by both the will and the understanding remains to eternity because everyone is his own love, and love attaches to the will; also because everyone is his own good or his own evil, for that is called good or evil which belongs to the love. Since man is his own love he is also the form of his love, and may be called the organ of his life's love. It was stated above (n. 279) that the affections of man's love and his resulting thoughts are changes and variations of the state and form of the organic substances of his mind. What these changes and variations are and their nature will be explained now. Some idea of them may be obtained from the alternating expansions and compressions or dilations and contractions in the heart and lungs, called in the heart systole and diastole, and in the lungs respirations. These are reciprocal extensions and retractions or expansions and contractions of their lobes. Such are the changes and variations in the state of the heart and lungs. Such changes and variations occur in the other viscera of the body and in their parts, too, by which the blood and the animal juices are received and transmitted. [2] Similar changes and variations take place in the organic forms of the mind, which, as we showed above, are the substances underlying man's affections and thoughts. There is a difference. Their expansions and compressions or reciprocal activities in comparison have so much greater perfection that they cannot be described in words of natural language, but only in words of spiritual language, which can sound only as saying that the changes and variations are vortical gyrations in and out, after the manner of perpetually winding spirals wonderfully massed into forms receptive of life. [3] Now to tell the nature of these purely organic substances and forms in the evil and in the good respectively: in the good the spiral forms travel forward, in the evil backward; the forward-traveling are turned to the Lord and receive influx from Him; the retrogressive are turned towards hell and receive influx from hell. It should be known that in the measure in which they turn backward these forms are open behind and closed in front; and on the other hand in the measure in which they turn forward, they are open in front and closed behind.