Apocalypse Explained #207
207. Verse 8. (Revelation 3:8) I know thy works, signifies a life of charity. This is evident from the signification of "works," as being those things that are of man's love, thus of his life (See above, n. 98, 116, 185); here, therefore, the things that are of charity, since that is what is treated of in what is written to this church.
Pillar
In Exodus 13:21, this signifies a state of illumination tempered by the obscurity of truth, and a state of obscurity tempered by illumination from good. (Arcana Coelestia 8106, 8108)
In Revelation 10:1, this signifies that the Lord's Divine Natural, which in itself is the Divine Humanity which He took in the world, sustains and supports His Eternal Divinity as the body does the soul, and as the natural sense of the Word does its spiritual and celestial senses; for feet signifies the natural, pillars signify support, and fire, the Divine Love. (Apocalypse Revealed 468)
In Exodus 26:32, this signifies what supports heaven and the church, namely the goods of love and of faith from the Lord. (Arcana Coelestia 9674)