According to Sigmund Freud’s psychoanalytic theory, there are three levels of human awareness or consciousness:

1. The Conscious Mind (Consciousness)
   This is the aspect of our mental life that we are aware of at any given moment. It includes all the thoughts, feelings, perceptions, and memories that we can actively access and verbalize.
2. The Preconscious Mind (Preconscious)
   This part of the mind contains all the information that is not currently in our conscious awareness but can be easily brought into consciousness. This includes memories, knowledge, and experiences that we are not thinking about at the moment but can readily recall.
3. The Unconscious Mind (Unconscious)
   This is the largest part of the mind, according to Freud, and it contains thoughts, memories, urges, and desires that are outside of our conscious awareness. The unconscious mind operates according to its own rules and logic, and its contents motivate many of our behaviors without us being fully aware of the underlying reasons.

Freud believed that the unconscious mind plays a crucial role in human behavior and that many of our thoughts, emotions, and actions are influenced by unconscious drives, conflicts, and repressed desires. He developed techniques like free association and dream analysis to try to access and understand the contents of the unconscious mind.