meaning
The meaning of meaning.
Ironically it, has multiple meanings. Sometimes it refers to the definition of a word. Within the context of symbolism, (in these pages) it usually means the abstract end of a symbol.
Spiritually, Heaven is the abode of God and therefore the realm of meaning.
Literally, the Sun and Moon (the lights of Heaven) reveal the truth about the nature of the material world. Enlightenment reveals hidden purposes for the material of the Earth.
Or in other words, Light and meaning from above provide answers to the questions from below.