I think the idea is to pull God's light into our bodies.
Our divine birth rite is to obtain greatness. To sit in grace, like in the big lap of God and ask that light into our bodies.
Just like the stories of shrinking bigger-than-life tumors - God's light is what will reverse DNA damage and triumph over not only genetic mutations but bio warfare.
This is the part in the movie where, like Indiana, we believe that plank is there, it emits itself from the cliff and we walk to the chalice.
No joke - I'm serious. KNOWING you are regenerating.
KNOWING you are perfect, robust and SEE it regenerating.
That is faith.