Acharya Prashant clarifies that the true definition of understanding is to become silent. He critiques the common misconception that understanding means fitting new information into one's pre-existing mental framework or past patterns. He argues that if a new realization is merely validated by memory and past experiences, it is not true understanding. Real understanding, or realization, occurs when one approaches the truth with simplicity and without the interference of the past. He explains that when people claim a spiritual text is too high-level or complex, it is often a defense mechanism to protect their ego and past identity from being invalidated by the truth.