“Light” in the Bible represents divine truth, ideas which pour out to us from the Lord's infinite love. It makes sense, then, that when something “shines” in the Bible, it means it is filled with that truth and inspired by it, and is itself offering ideas that are derived from that truth. For instance, when Moses spoke with the Lord, his face shone afterward, so brightly that he wore a veil; this shows the divine inspiration that went into his writing of the law for the Children of Israel, writing that is filled with divine truth.

'To shine' or 'shining' can also mean being exempt from falsity, or being pure by reason of truth.

(References: Apocalypse Explained 1222; Apocalypse Revealed 53, 414, 897; Arcana Coelestia 10703)

Fish represent knowledge. Fish laid upon the fire, as in John 21:9, represent the reformation of the natural man by the good of love, of which description were all the men of that time, in consequence of the complete vastation of the church. Fish signify sensual affections which are the ultimate affections of the natural man. Fish sometimes also represent people in common truth or conversely in external falsity. Broiled fish, as in Luke 24:42, signify the truth of good relating to the natural and sensual man, and honeycomb, the good of the same truth. To make as the fishes of the sea, signifies to make altogether sensual. Fish, as in Habakkuk 1:14-16, signify people in faith separate from charity.

(References: Apocalypse Revealed 405; Luke 24)