The heart means love. A good heart means love to the Lord and to the neighbor, while a hard or stony heart means the love of self or the world -- riches and things. When the psalmist asks the Lord to search his heart, he wants the Lord to see what it is that he loves. And we are what we love. What we eat may form our earthly body, but it's only temporary, what we love forms our spiritual body, beautiful or ugly as we have chosen. It's interesting to note that the first multi-cellular motion of our embryo is the pulsating that starts in a twist of blood vessel that is to become our heart, and the last motion of our natural body is our heartbeat. It is there for all of our natural life. And of course there is a beating heart in our spiritual bodies when we come to put them on.

3190. 'And they rode on the camels' means the understanding part of the mind, raised up above natural facts. This is clear from the meaning of 'riding' as the understanding when raised up, dealt with in 2761, 2762, and from the meaning of 'camels' as general facts in the natural man, dealt with in 3048, 3071, and so natural facts. The implications of this are that when truth from the natural is raised up into the rational it is borne out of the sphere of worldly light into that of heavenly light - so to speak from the obscurity of night into the brightness of day. For the things that belong to the light of the world, in which all natural objects exist, dwell so to speak in night, compared with things belonging to the light of heaven; but things that belong to the light of heaven, in which all spiritual objects exist, dwell so to speak in daylight, compared with things belonging to the light of the world. Consequently when truth from the natural is raised up towards the rational, the person is raised up at the same time into intelligence and wisdom. All the intelligence and wisdom present with man comes from this source. These are the things meant by the understanding part, raised up above natural facts.