Simplify the following

The unconscious contains memories, emotions and instincts that are
so threatening to the conscious mind that they remain buried in the
unconscious mind. Instincts such as sex or aggression operate from the
unconscious.

The unconscious mind holds memories, emotions, and instincts that are too threatening for the conscious mind to handle, causing them to be buried out of awareness. Instincts like sex and aggression stem from the unconscious mind.