Bhagavad Gita, Chapter 13, Verse 24

He who thus knows the Purusha and Prakriti together with the Gunas, whatever his life, is not born again.

Real, specific understanding is tied directly here to a real, specific outcome, no rebirth.

Krishna doesn't leave the payoff vague, grasping the relationship between soul, source, and material nature is named as sufficient on its own. Real knowledge does real work here, not symbolic work.