If you dream about hearing the groans, then such dream suggests you to make up your mind about some important matter immediately, otherwise the evil will get to you and destroy you.
Dream dictionary: Groans dream meanings
…If you hear groans in your dream, decide quickly on your course, for enemies are undermining your business. If you are groaning with fear, you will be pleasantly surprised at the turn for better in your affairs, and you may look for pleasant visiting among friends….
…There are unquestionably certain people who, in their dreams, witness events that are actually taking place at the time.A lady I knew, Mrs. P., who lived in Gloucester Place, W., dreamed one night she was in a big seaport town, where the streets were all numbered and laid out in blocks according to the American system, and where in one part of the city the tramlines descended over a series of plateaux. The houses were very lofty, and in one street a single hotel occupied an entire block. Shortly after her arrival, the entire town shook and heaved under the influence of a stupendous earthquake; houses collapsed like packs of cards, and, amidst the most appalling shrieks and groans, the whole city burst into a lurid sheet of fire. Everywhere was the wildest confusion and despair. People of all nationalities, from fair-skinned Europeans and yellow-visage Chinese of which…
…To hear groans of agony in your dream, denotes that you will soon go to a frolic, or to a place where you will be much entertained; if you see and recognize people groaning, it shows that they will soon do something to amuse or please you. Lucky lottery dream numbers – 41, 8….