さあ、 無に帰り！

To those who can't read Japanese, that's "Saa, mu ni kaeru!"

Literaly, that reads "Now it returns to nothing." Or more popularly, "Now, all returns to nothingness!"

If you're familiar with KOF97, you will recognize this instantly as the blinding light, one of the very powerful moves of Orochi.

Something in that quote always sparks my curiosity. Does this mean that the bright light has the power to destroy ANYTHING?

It's a possibility.