Arcana Coelestia #9819
9819. 'And they shall make Aaron's garments' means through whom the spiritual kingdom exists. This is clear from the meaning of 'Aaron's garments' as a representative sign of the Lord's spiritual kingdom lying adjacent to His celestial kingdom, dealt with above in 9814. The reason why the wise at heart, filled with the spirit of wisdom, were to make those garments is that by these people those in the celestial kingdom are meant, and the spiritual kingdom is what springs from and so what covers that celestial kingdom like a garment next to the body, as also becomes clear from the things that have been stated in 9818.
John 14:16-18
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I will pray to the Father, and he will give you another Counselor, that he may be with you forever,--
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the Spirit of truth, whom the world can't receive; for it doesn't see him, neither knows him. You know him, for he lives with you, and will be in you.