Acharya Prashant explains that simplicity cannot be judged through external behavior or conduct because behavior can be manipulated and is often just a mask. He notes that our senses are outward-looking and can only perceive clothes, speech, and actions, which leads to incorrect judgments based on conditioning. True simplicity is not about wearing certain clothes or eating specific food; rather, it is a state of mind that is unbiased and not weighed down by the past. He defines complexity as a mind lost in imagination, memories, or expectations, whereas simplicity is being fully present in the reality of the moment. He further elaborates that a complex mind is filled with greed and fear, often driven by the desire for future rewards like degrees or marks. In contrast, a simple mind lives in the joy and love of the present. Acharya Prashant highlights that great discoverers like Sir Isaac Newton possessed simple minds that could ask direct questions about everyday occurrences without being blinded by past notions. He asserts that excellence is a result of enjoyment and immersion, which is only possible through attention. This quality of attention and being fully immersed in the present is what he defines as true simplicity.