Vision: In men’s dreams, ruins indicate a craving for pleasure or too much ambition. Ruins are a warning about being more modest—otherwise, your health will be “in ruins.” Seeing a ruin: you are still holding on to something from the past, or neglecting something important in your life. Spending time in a ruin: something rather strange will take place—be careful. Seeing a burned-out ruin: right now you, too, are in need of some “reconstruction”; are you “burned out” from too many passion and cravings? See Fire.
Depth Psychology: A ruin might refer to past experiences that you have not processed yet. But in general, it reflects a fear of old age and illness, or of losing strength. Sometimes the dream is a warning of impending material losses (being “ruined”).