To dream of quicksand represents situations were you feel you can’t do anything except make it worse. Screwing yourself over if you do anything at all. You may feel trapped in a situation that you can’t do anything about.
may be a sign that you need to speak up or that it may be a good idea to completely walk from something.
Example: A man dreamed of seeing a horse sinking . In waking life he was highly motivated to fix his failing marriage, but he felt that no matter how hard he tried the marriage was getting worse.