Where does the light of redemption and the falling ashes come from?

Like the light of salvation, like falling ashes comes from BTS. No matter what, respond to feelings and move your heart, you must treat them with gentleness. What is urgent and worrying lies in one's own slowness. It's as comforting as ever, as charming as ever, but it's an excuse to cover up slowness after all. But the reason or the beginning must be worthy of the word "gradual". "Gradually" feels like a beam of light being projected, "like the light of redemption, but also like falling ashes." This lyrics is very "light and dust", the dust in the world, may it be transparent.