The crab is a different creature and it is one that you typically don't dream about too often. However there are about three main traits that should make you think about what the crab really means to us and those are as follows. One, the crab is a delectable food source. It is often the most expensive item at a sea food restaurant and comes in very small portions. Two, the crab is good at hiding and often does because it doesn't want to show its face around the world. Three, the crab is the sign of the astrological sign of cancer. It is the mascot for all of those traits and beliefs which might be what is causing you to think of it. For a more in depth description of what it might mean about your actual dream, keep reading.
If you have a dream in which you see a crab it means that you are going through a lot of stuff and you just want to hide in your little shell. Crabs are known for keeping themselves segregated from the rest of the world when they can, and most people would probably not even know they existed if they weren't displayed regularly in markets as foodstuff. Try to think of the last time that you saw a crab walking around in real life. You probably can't, can you. Well, if that's the case then it makes perfect sense for your situation.
You have probably been through some rough times lately and you feel like you just want to duck your head under a bridge for a while and not come out until everything is okay again. This is what it is all about. Your dream is telling you that you would be immensely comfortable hiding away from the things that are going on in the rest of the world and just keeping yourself out of it until you are okay and everyone around you seems to be getting back to normal. Basically you aren't so good at handling stress.
This may be part of the reason why the crab was chosen as the mascot to represent the astrological sign cancer, because crabs like to hide and keep themselves out of the world and so do people born under that astrological sign, allegedly. If your dream had to do with the astrological sign, it might have to do with the hidden aspect as well, or it might have to do with your intelligence. Intelligence is a major selling point when it comes to the crab and the cancer sign.
If you have a dream where you are eating crab then it is probably because you have a thing for the finer things in life. You like being at the top of your game, so to speak and you enjoy the fact that crab is for those highly refined people. Not everyone can enjoy it unless they are of economic means.