Dreaming that the sand keeps sinking, but you just keep sinking, which means that you have a lot of troubles entangled with you and your health is very unhealthy, so you should be treated as soon as possible.
Dreaming of sinking generally means that life is unstable, but sinking without starting point and ending point may be because the dreamer feels lonely because of lack of contact with the environment.
Psychological dream interpretation
Interpretation of dreams: If you feel that you are sinking in a dream, it is a sign of losing confidence. If you see another person sinking, it implies that you realize that a problem must be solved by external help. You may feel that you have lost your dependence in a certain relationship or occasion, and the place where you sink may also have certain significance. If you sink into the water, you are in danger of being troubled by some kind of emotional entanglement. If you go deep into the sand or swamp, you are afraid of not gaining a foothold.
Psychoanalysis: The feeling of sinking usually implies anxiety and fear. You don't think you can maintain happiness. Maybe you feel out of control and can't move on. If you watch an object sink gradually, it may imply that your consciousness will lose a precious thing or a precious person.
Spiritual symbol: whether mentally or physically, the sinking in the dream means that you are in a situation where you can't see clearly or find the best way to behave. For oversensitive people, when other people's negative attitudes affect you, they will have such dreams.