5586. 'Unless your brother is with you' means unless the intermediary is with you. This is clear from the representation of 'Benjamin' as the intermediary, dealt with in 5411, 5413, 5443. The intermediary represented by 'Benjamin' serves as the link between the internal and the external, that is, between the spiritual man and the natural man; also, it is the truth of good that goes forth from truth from the Divine, represented by 'Joseph'. This truth of good is called the spiritual of the celestial - 'Benjamin' being the spiritual of the celestial, see 3969, 4592. A person's internal and external are completely distinct and separate from each other; for his internal dwells in the light of heaven, his external in the light of the world. And being completely distinct and separate they cannot be joined together except through the intermediary which derives its existence from both of them.

4796. When angels manifest themselves visually, all their interior affections are seen clearly in their faces and shine out of them, so that the face is the external form and a representative image of those affections. To have any other face than that expressing their affections is not allowed in heaven. Those who deceitfully wear any other face are expelled from that community. From this it is evident that the face corresponds to everything in general present interiorly - both to a person's affections and to his thoughts, that is, to the affections in his will and to the thoughts in his understanding. This also explains why in the Word 'face', whether a singular or a plural noun, means affections; and when it is said that the Lord lifts up His face on someone, the meaning is that out of Divine Affection belonging to His Love He has compassion on him.