Final answer:
Freud's iceberg analogy emphasizes that the mind is largely made up of the unconscious, which contains our deepest drives and repressed memories, influencing our behaviors and thoughts.
Step-by-step explanation:
In suggesting that the mind is like an iceberg, Freud was most clearly emphasizing the importance of the unconscious. The analogy of the iceberg is used to illustrate that only a small part of our mind (the ego, and some of the superego) is visible above the surface, or conscious, while the vast majority (including the id and much of the superego) lies beneath the surface, beyond our awareness. Freud believed that the unconscious mind stores repressed memories and desires that influence our conscious thoughts and behaviors.