A flame of fire, as in Revelation 1:14, signifies spiritual love, and when spoken of the Lord, his divine love. A flame signifies spiritual good, and the light of it, truth from that good. A flame, in the Word, signifies good things relating to love, and lights, the truths relating to faith. A flaming fire, as in Psalm 104:4, signifies the celestial spiritual principle.

(References: Arcana Coelestia 3222, 6832)