This nothingness also appears in other experience reports, which is why I’m confident its an actual important piece of the puzzle — although not sure what to think of it yet. I don’t think this is what we would call “God,” or “Creator,” that’s the Source Energy. This is something else.
The Nothing or No-Energy or Darkness Surrounding 
The Source Energy or Light
“It’s like the yin and yang, opposite and similar, together darkness and light [*she draws a yin-yang symbol*]. There’s darkness [*she colors in blackness surrounding everything*]. Darkness and light.”
“Lightness and darkness. Light in the dark.”
She draws a yin-yang symbol then colors darkness surrounding the central source energy — likely representing the nothingness or darkness or no-energy that surrounds the source energy or light.