Can a highly intelligent scholar interpret the Upanishads correctly on their own, or is something else required?

The text strongly argues against the idea that intellect alone is sufficient for understanding sacred texts like the Upanishads. Chapter 20 puts forth a hypothetical scholar who believes, 'by my own efforts I will comprehend the Upanishads,' but immediately dismisses this notion. It asserts that without the Guru's grace, 'the hidden truth does not come to hand.' The text further clarifies that this 'science of Self-knowledge' is a weapon against birth and death, and only those who are 'humble and detached are worthy of its discussion.' Therefore, intellectual prowess must be paired with humility, detachment, and above all, the grace of a Satguru to unlock the true meaning.