'Herb bearing seed,' as mentioned in Genesis 1:29, signifies truth in terms of its use. (Arcana Coelestia 57) Every herb in the Bible signifies some type of knowledge.

'Green herbs,' as mentioned in Genesis 1:30, mean food for the natural man.

'Eating the herb of the field,' as mentioned in Genesis 3:18, signifies that a person should live as a beast.

'Herb of the field' signifies spiritual truth.

(सन्दर्भ: Arcana Coelestia 7626)

126. LIGHT AND HEAT IN HEAVEN

People who think only from nature cannot comprehend that there is light in the heavens. Yet, such is the light in the heavens that it exceeds by many degrees the noonday light of the world. I have often seen that light even during the evening and night. At first, I marvelled when I heard angels saying that the light of the world is little more than a shadow in comparison with the light of heaven, but, having seen it, I can testify that it is so. The brightness and splendour are such as cannot be described. The things that I have seen in the heavens have been seen in that light, thus more clearly and distinctly than things in this world.