6751. 'And he was a son to her' means that then first truths were attached to that affection. This is clear from the representation of Pharaoh's daughter, to whom 'to her' refers here, as an affection for factual knowledge, dealt with immediately above in 6750; and from the meaning of 'son' as truth, dealt with in 489, 491, 533, 2623, 3373, here first truth since 'being a son to her' is possessing first truths acquired through factual knowledge. For first truths are born from factual knowledge and so are like sons born from their mother, who is the affection for factual knowledge. And factual knowledge is the groundwork for truths composing the understanding and faith, see above in 6750. When a person is being regenerated matters of faith develop in him in almost the same way as things that are not matters of faith develop while he is growing up. While he is growing up sensory impressions compose the first level to be laid down, then known facts another level; and after that, grounded on these levels, the power of judgement grows, more fully with one person, less fully with another. While a person is being regenerated the general aspects of faith or the basic elements of the Church's teachings compose the level that is laid down first, then come particular aspects of that teaching and faith, and after that in successive stages things that are more and more internal. These are levels which the light of heaven shines on; and from this comes the power of understanding, and the ability to perceive the truth of faith and the good of charity.

5102. 'Saying, Why are your faces sad today?' means, What affection gives rise to this sadness? This is clear from the meaning of 'faces' as the things that are within, dealt with in 358, 1999, 2434, 3527, 4066, 4796, 4797, and so as the affections, for a person's interiors from which his thoughts spring - which are also things that are within - are his affections; and being aspects of his love, these affections are essentially his life. It is well known that the affections reveal themselves in the faces of those who are in a state of innocence; and when those affections reveal themselves, so too does a general impression of their thoughts, for people's thoughts are the forms their affections take. Regarded in itself therefore the face is nothing else than an image representing the things that are within.

[2] No face is looked at by the angels in any other way, for angels do not see the material but the spiritual form that a person's face takes; that is, they see the form presented by his affections and the thoughts springing from those affections. These are the essential components of the human face, as anyone may recognize from the fact that when bereft of thought and affections the face is completely dead, and that the face is enlivened by them and owes its pleasing looks to them. The sadness expressing some affection, or an affection which gives rise to sadness, is meant by Joseph's words, Why are your faces sad today?