It often seems that recurrent dreams correlate with one’s anxiety; nightmares invariably do. The anxiety dream I see the most involves tidal waves, which can reflect feeling flooded or drowned by emotion.
The meaning of the dream can be as individual as the dreamer and his or her associations to it, but common examples of recurrent dreams include being chased by a knife, being raped, or falling from a high place. Conversely, as patients get treatment for their anxiety, their dreams can reshape as well. One might dream of standing on firmer ground or feeling safer or less alone in the world.