305. Verses 4, 5. And I wept much, that no one was found worthy to open and to read the book, neither to look thereon. And one of the elders saith unto me, weep not; behold, the Lion that is from the tribe of Judah, the Root of David, hath overcome to open the book, and to loose the seven seals thereof.

4. "And I wept much, that no one was found worthy to open and to read the book, neither to look thereon," signifies grief of heart on account of the disorder and destruction of all things, if no one could know [scire], cognize [cognoscere], and explore all men, and all things pertaining to men (n. 306).

5. "And one of the elders," signifies a society of heaven superior in wisdom to the rest (n.307); "saith unto me, Weep not," signifies that there need be no grief on that account (n. 308); "behold, the Lion hath overcome," signifies that the Lord from His own power subjugated the hells, and reduced all things in the heavens to order (n. 309); "from the tribe of Judah, the Root of David," signifies by means of Divine good united to Divine truth in His Human (n. 310); "to open the book, and to loose the seven seals thereof," signifies that He knows and recognizes all and each, and the most secret things of everyone (n. 311).

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.