The so-called "dust in sunlight" refers to how the sun's brightness makes even the smallest particles in the air visible.
The so-called "dust hidden by sunlight" is when the sun burns so fiercely that, although the world is full of dust-like beings and things, they can no longer be seen; even if you close your eyes, the brilliance of the Great Sun still penetrates the eyelids, piercing straight into the brain.
As a master who excels in the Six Yang Skill and the teacher of the new generation's Manifest Saint True Monarch, Chenyinzi's most proficient technique is precisely the "Light and Shadow Mirror Image" method, rooted in the basic divine power True Thought of "shadows born from light, mirrors revealed by light" – the more intense and powerful the light, the more profound and solid the "Light in Shadow" he can summon!
Just like now.