Why: one who studies this sacred dialogue between the two of us will worship Krishna through the sacrifice of knowledge, this is Krishna's belief, suggesting genuine engagement even with the recorded teaching itself carries real value, beyond the original, direct conversation.

In life: engaging seriously and thoughtfully with recorded wisdom, even generations after it was first given, still carries genuine value, you don't need to have been physically present for the original exchange for real benefit to be possible.

Teaching: engage with recorded wisdom you have access to, books, teachings, guidance passed down, with the same seriousness you'd bring to a live conversation, this verse suggests genuine benefit is fully available through that engagement, not only through direct, in-person exchange.