If you are dreaming that you see the hole on the ground, then such dream indicates your secret activities. The hole in the ground could also show that you are feeling not fulfilled. Perhaps you have a feeling as being empty. The dream could be understood as the suggestion to do something in order to feel less lonely and empty inside. If you dream that you have fallen into the hole, then it shows some situation you have stuck in. Perhaps you do not know how to escape this position.
Dream dictionary: feeling lonely dream meanings
If you see yourself in Arctic, it symbolizes your hidden emotions. There is a possibility that you are feeling frosty and apathetic. Make sure you do not stay alone and communicate with people around you. You have to rely on others, because if you will not trust them you will keep suffering and feeling lonely.