When we eat, our bodies break down the food and get from it both energy and materials for building and repairing the body. The process is similar on a symbolic level in the Bible. Food represents the desire for good and the insight that comes from that desire for good – goodness and understanding that come from the Lord. But to put them to use we have to take them in and make them our own – which is spiritual eating.

683. As regards the use twice of the verb 'did' comprehending both good and truth, it should be recognized that in the Word, especially the Prophets, one matter may be described in two ways, as in Isaiah,

He has passed on in peace, a way He has not gone with His feet. Who has performed and done this? Isaiah 42:3, 4.

Here the first statement has regard to good, the second to truth, that is to say, the first regards things of the will, the second those of the understanding. Thus 'passing on in peace' embodies things of the will, 'a way he did not go with His feet' those of the understanding. The same applies to 'performing' and 'doing'. In the Word things that belong to the will and to the understanding, that is, to love and faith - or what amounts to the same, celestial things and spiritual things - are joined together in such a way that each individual part images a marriage, and answers to the heavenly marriage. The same applies here with the repetition of the same verb.