The waves at the beach represent the way in which material from this hidden and mysterious place constantly interacts with our conscious mind as represented by land.
The undertow is a profound place where the interplay of simultaneous movement toward and away from the shore is dynamic and powerful.
It is the unseen force that can drag you away if you are not careful in your explorations of this potentially dangerous realm. It represents the fear of being overwhelmed by what is in your unconscious mind. [1]
To dream of being caught by an undertow and being out of control implies that you may now have to accept your part in an emotional drama before finding a way to breathe and walk away. [2]