Based on Bhagavad Gita Chapter 18, Text 42
Practicing devotional life means embarking on an inward devotional journey to connect with Krishna. On this journey, the mind poses the primary roadblock by constantly craving for external pleasures.
For removing this roadblock, we can derive a two-pronged strategy from the Bhagavad-gita (18.42):
Shama (Peacefulness): This is the strategy for converting the mind. We draw on the strength of our intellectual convictions to show the mind the true nature of material pleasures: despite all their promises, they disappoint us at best and devastate us at worst. Then we contemplate on the taste of our devotional experiences to show the mind their superiority and preferability as alternative sources of happiness. Thus we let the mind see for itself the emptiness of material pleasures and the richness of spiritual pleasures. When confronted with undeniable contrast, the mind shuns worldly cravings as senseless and becomes peaceful.