57. 'The plant yielding seed' is every truth that looks towards a use. 'The tree in which there is fruit' is the good that accompanies faith. 'Fruit' is what the Lord gives to the celestial man, while 'seed', the source of the fruit, is what He gives to the spiritual man. This is why it is said that 'the tree producing seed will be for you for food'. That celestial food is called 'fruit from a tree' is clear from the next chapter where the subject is the celestial man. Here let just that be mentioned which the Lord spoke through Ezekiel,

Beside the river there is rising up upon its bank, on this side and on that, every tree for food. Its leaf will not fall nor its fruit fail. It is re-born monthly, for its waters flow out from the Sanctuary, and its fruit will be for food, and its leaf for medicine. Ezekiel 47:12.

'Waters from the Sanctuary' means the life and mercy of the Lord, who is the Sanctuary; 'fruit' means wisdom, which is food for them; 'leaf' is intelligence, which is given them for a use, which is called 'medicine'. Spiritual food however is called 'a plant', as stated through David,

[Jehovah is] my Shepherd, I shall not want; He makes me ¹ lie down in green pastures. ² Psalms 23:1-2.

Footnotes:

5806. 'And he alone is left to his mother' means that this is the only truth the Church possesses. This is clear from the representation of Benjamin, to whom 'the only one left' refers here, as new truth, dealt with just above in 5804; and from the meaning of 'mother' as the Church, dealt with in 289, 2691, 2717, 5581. With regard to the fact that this truth - represented here by 'Benjamin', and described above in 5804 - is the only truth the Church possesses, the situation is this: Such truth is truth springing from spiritual good, which is 'Israel'; and it is what 'Benjamin' represents when he is with his father, whereas truth even more interior is represented by him when he is with Joseph. The truth which Benjamin represents when he is with his father and which is called new truth is the only truth that enables a person to be a Church, for this new truth or those truths [spoken of in 5804] hold life received from good within them. That is, the person with whom the truths of faith exist rooted in good is a Church, not so the person with whom the truths of faith but no good of charity exist. With the latter person the truths are dead, even though they may have been the same truths. From all this one may see what the situation is with regard to the fact that this truth is the only truth the Church possesses.