God intends to bring about a permanent physical separation of light from darkness. Light weight and light bearing are synonyms, like dark and heavy are. In general heavier, denser materials are darker.
Physical Separation
Spiritual Separation
Separation is a scriptural doctrine which is generally thought of in terms of Christians holding themselves apart from the rest of the world and avoiding worldly distraction which can lead us into sin. There's more to it than that.
Separation of Heart and Mind
By examining the Biblical characteristics of heart and mind we've reconciled two concepts: the soul as our consciousness and personality, and the soul as a gravity node.
To discern: בִּין – bin
The Hebrew words bayin - בֵּין and bin - בִּין are very nearly the same word. They're part of the meaning of a root which means: to understand nuance, to separate between.
A space between: בֵּ֥ין – bayin
Dividing the water above the firmament from the water below below it required physical space. Likewise, dividing the light from the darkness isn't the alternation of day and night, it's also the their separation by a physical space.
February 9th
In pondering the physics of creation we have come to understand that the earth is part of the ongoing process of the permanent physical separation of light from darkness. The process is not complete. Yet.