Acharya Prashant explains that mental control and suppression techniques are ineffective because they do not address the root cause of ignorance. He uses the analogy of surface water versus groundwater to illustrate that external methods are temporary and dry up quickly, whereas internal realization is deep and enduring. He emphasizes that Ashtavakra rejects all mechanical efforts of the ignorant person, asserting that as long as one relies on methods, one remains ignorant. The fundamental difference between an ignorant person and a wise one lies in their beliefs; the ignorant person believes in the efficacy of external methods and future results, while the wise person rests in natural awareness.