In 2 Kings 1:2; Psalm 38:7; Exodus 15:26; Luke 6:17, this signifies temptations, and corresponds with the state of the man's spirit. (Arcana Coelestia 5711)

In Deuteronomy 7:15, this signifies the evils which assail people in faith separate from charity, and so in a life of evil. (Arcana Coelestia 8364)

In Matthew 4:24, disease or illness signifies various kinds of evils and falsities infesting the church and the human race, which if allowed to continue, would have induced spiritual death. (Arcana Coelestia 8364) 'Pestilence' denotes the vastation of good and truth.

(Odkazy: Arcana Coelestia 7102)

Fire, in the spiritual sense, can mean either love or hatred depending on the context, just as natural fire can be either comforting in keeping you warm, or scary in burning down your house. Our language reflects this, too -- we use concepts like a smoldering hatred or a burning love. So fire signifies a love, either a good love of the neighbor and to the Lord, or, in a bad sense, selfish love of oneself that, if unchecked by conscience, leads to hatred of anyone that opposes it.