Bhagavad Gita, Chapter 6, Verse 18
When the completely controlled mind rests serenely in the Self alone, free from longing after all desires, then is one called steadfast in the Self.
Real focus isn't about forcing cravings away, it's about the mind genuinely settling somewhere better.
This describes a real shift in direction, not white-knuckled suppression. Once attention has genuinely redirected toward something deeper, the pull of ordinary craving naturally loses its grip.