Acharya Prashant explains the relationship between unconsciousness and awareness by stating that only thought can give meaning to another thought. He uses the analogy of a dream: after waking from a dream, which is a thought, another thought tries to analyze it. This analysis is based on memory. If the dream's content, such as flying buildings, is not found in one's memory, the analyzing thought deems it absurd. This illustrates that the mind, through the faculty of memory, tries to make sense of its own activities. He elaborates that there are two kinds of thoughts. The first kind appears meaningful and proper to the analyzing thought because it aligns with memory. The second kind does not fit within the domain of this analyzing thought and is what is more or less referred to as the subconscious. The subconscious is a vast store of experiences that is constantly active. These subconscious thoughts may originate from a place so far back in time that memory cannot recall their source or provide a meaningful interpretation. Sometimes, the conscious mind may not even realize that a subconscious activity is a thought at all. This can result in a state where mental activity is ongoing, but one is unable to register or claim that they are thinking, especially if the thought is completely absurd to the conscious mind. There is no fundamental difference between the conscious and the unconscious; both are forms of thought. The subconscious is simply the part of the mind that is not currently accessible or interpretable by the conscious, memory-based thought process. When a person is alert, they can sense the background noise of the subconscious even if they cannot interpret it, which can be a source of unease. When one reaches the point of true understanding or awareness, all these waves of thought, both conscious and subconscious, disappear. The speaker concludes that acknowledging the subconscious is important for maintaining the humility that one does not fully know their own mind. The mind may express one thing in words while ten other things remain as a hidden, buzzing background noise.