6225. 'And Israel strengthened himself' means new powers received through spiritual good. This is clear from the meaning of 'strengthening oneself' as receiving new powers; and from the representation of 'Israel' as spiritual good from the natural, dealt with in 4286, 4598, 5801, 5803, 5806, 5812, 5817, 5819, 5826, 5833. The reason the new powers come through spiritual good is that in what has just been said Jacob is called Jacob but now he is called Israel; for this is what is said,

[Someone] told Jacob and said, Behold, your son Joseph has come to you; and Israel strengthened himself.

For 'Israel' is spiritual good from the natural, whereas 'Jacob' is the truth of the natural, and the truth of the natural, which is the truth of faith there, receives its strength through spiritual good, which is the good of charity. Also, 'Israel' is the internal aspect of the Church and 'Jacob' its external aspect, 4286, 4292, 4570. The external aspect of the Church derives its strength and receives its powers from nowhere else than its internal. The internal aspect of the Church exists among those governed by the good of charity, which is the good of faith, also the good of truth, and spiritual good as well, which are 'Israel'. But the external aspect of the Church exists among those governed by the truth of faith. They are not yet plainly governed by good; yet the truth they are governed by holds good within it, and this is 'Jacob'.

4598. 'Israel travelled on' means the celestial-spiritual of the natural then. This is clear from the meaning of 'travelling on' as a further stage or a continuation, dealt with in 4375, 4554, in this case towards aspects more interior still, and from the representation of 'Israel' here as the celestial-spiritual of the natural, dealt with in 4286. What the celestial-spiritual of the natural is has been explained already, namely the good of truth, or the good of charity arrived at through the truth of faith. Little knowledge exists in the world of what an advance towards more interior aspects is. It is not an advance into knowledge of facts, for that kind of advance is often made without any advancement towards interior things, and more often still is accompanied by a movement away from these. Neither is it an advance in maturity of judgement, for this too is sometimes accompanied by a movement away from interior things. Nor yet is it an advance made into cognitions of interior truth, for these count for nothing if a person does not have any affection for them. An advance towards interior things is an advance nearer to heaven and the Lord made by means of the cognitions of truth which have been implanted in an affection for them, and so is an advance made by means of the affections.

[2] What an advance towards interior things is like is not apparent to anyone in the world; but in the next life it is plain to see. In that life it is an advance out of a kind of haze into light; for compared with others people who are concerned solely with more external things live in a haze, and are also seen by the angels to do so, whereas those who have a concern for more internal things dwell in light, and consequently in wisdom since the light there is wisdom. And what is amazing, those living in the haze cannot see that those in light are in light, whereas those dwelling in light can see that those in the haze are in a haze. Since the subject is the advance made by the Lord's Divine towards more interior aspects, Jacob is called Israel here; but where that advance is not the subject he is called Jacob, as in verse 20 immediately before this, and in the final verse of this chapter.