Shraddha is the key to life. It is our shraddha, our conditioned assumptions, that shapes our thoughts and actions, and it is our shraddha, our faith, that shapes our will and our destiny.
This passage establishes shraddha as the foundational psychological principle of the Gita, equating it with deep conditioned belief that determines character, action, and destiny.
, The Bhagavad Gita for Daily Living: A Verse-by-Verse Commentary, 1975thesis