To dream of noticing a strong undertow is an alert that you may be being sucked into a significant emotional drama. However, there is time to step back and not get caught up in another person’s boring choices.
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.... Dream Symbols and Analysis
Dreams of an undertow signify that you are feeling overwhelmed and out of control with emotions and passion. You may be venting out your fear of being seduced or unable to stand your ground in the face of a persuasive person.... Strangest Dream Explanations
To dream of an undertow in the water symbolizes a strong influence that is working on you in your present life. You may feel “pulled down” by your current pressures, or by a particular problem or bad influence. You must use your self-control and willpower to assert yourself and regain control of your situation.... My Dream Interpretation