1. The forms in the three degrees correspond to each other.
2. Correspondence exists according to influx into degrees in this way: What is higher (or interior) flows into what is lower (or exterior), causing it to live, while what is lower (or exterior) acts as a foundation for what is higher (or interior), allowing them to live. Correspondence is a relationship of life. They need each other to exist.
3. Correspondence is a matter of qualities, characteristics and functions. For example, it is the qualities of a rock, its characteristics and its functions that correspond with truth.
4. What is lower (or exterior) represents what is higher (or interior), and never the other way around. For example, a rock represents truth.
5. Verbal or pictorial symbols of representatives (the lower or exterior things) signify what is represented (the higher or interior things). For example, the word “rock” or a picture of a rock signifies truth.
