6418. 'The son of a fertile one beside a spring' means the fruitfulness of truth from the Word. This is clear from the meaning of 'the son' as truth, dealt with in 489, 491, 533, 2623, 2803, 2813, 3773, 3704; from the meaning of 'a fertile one' as the fruitfulness of truth, for fertility, like bearing and birth, applies in the spiritual sense to truth and good, 1145, 1255, 3860, 3868, 4070, 4668, 5598; and from the meaning of 'a spring' as the Word, dealt with in 2702, 3424, 4861. From this it is evident that 'the son of a fertile one beside a spring' means the fruitfulness of truth from the Word. Those who belong to the Lord's spiritual Church, the Church represented here by 'Joseph', come to know what good is from truth received from the Word, and so are introduced into good by means of truth. Then follows the fruitfulness meant by 'a fertile one'.

5598. 'And our generation' means regarding the truths of faith there. This is clear from the meaning of 'generation' as the birth of truth from good or faith from charity, dealt with in 1145, 1255, 4070, 4668. The reason 'generation' has this meaning in the internal sense is that in heaven no other kind of birth is meant than what is called regeneration, which is effected by means of the truth of faith and the good of charity. By this kind of generation or birth the children of men become the children of the Lord; these are they who are called 'the born of God' in John 1:13. The variations that exist in the offspring of good from truth and truth from good within that kind of generation are what determine the brotherly or blood relationships and the relationships by marriage that exist in heaven.

[2] In heaven unending variations exist; but those variations are effected by the Lord in such a way that they resemble families in which there are brothers, sisters, sons-in-law, daughters-in-law, grandsons, granddaughters, and so on. In general however all are organized into the kind of form that makes one united whole. They are like the variations within the human body, in which no one member is exactly the same as any other; indeed no one part within any member is the same as any other part. Even so, all those varying parts are organized into the kind of form in which they act as a single whole, and each fits in directly or remotely with the activity of another. Seeing a form such as this in the human being, one may deduce what the form must be like in heaven, with which there is a correspondence - a most perfect one - of everything in the human being.