Scriptures are also called ‘Grantha-ratna’. The deeper you dive, the knowledge you will discover will be most precious, cause that gemstone is Krsna Himself.
Austerities performed for sense gratification provide Sukha that is impermanent pleasure. But austerities performed for self-realization provide eternal happiness.
When you distribute Bhagavad Gita, you please the entire parampara, from Krishna to Srila Prabhupada and your spiritual master. This is the success of life.