Burn a log and it releases light. Everything biological and natural to this grid system stores light. We eat veggies too that absorbs light.
The reason "they" are attracted to children's light is because it's the purest.

I quit eating veal several years ago. I realized the compare it made, it was shocking. And I am not interested in repeating any patterns.

If we all partaked safely in sun gazing, we would not need to eat. But we still would need to hydrate.