[crabapple]

Well again, this grocery store in the dream was in their neighborhood. Meaning, you attempted to go about your business within their new situation. Your difficulty in the store is your nervousness about being able to function properly once their situation changes.

Dreams are generally not interpretable literally; they must be decoded. Dreams pull up thinking that is in your subconscious mind and play it, like a movie, in a veiled, symbolic format that you can only understand through interpretation. So, while consciously you may believe one thing is true, subconsciously you may feel otherwise. You are looking at thoughts that consciously, in your waking life, you tend not to be aware of. By analyzing your dreams, you can gain insight into how your own mind is working under the surface.

It's not likely at all, then, that your dream is literally about them "moving" to a new neighborhood. The "moving" is probably symbolic of something else. I think it represents some other sort of distance that you feel will be separating you at some point. Remember the whole business about having to make a special trip to see them; clearly their new distance in the dream is an important detail. Once you get into the neighborhood, what happens? You try to buy some groceries and find the experience impossible and disturbing. So that clues you in to how you might feel about this "distance" between you.