Laughing in a dream means happiness and joy in wakefulness, except if one bursts with a horselaugh or falls over his back from laughing in his dream.
If so, then it means crying.
If one’s laughter in his dream is caused by a joke, then it denotes his dishonesty.
The same goes for laughing by imitation in a dream which means falling into sin. Laughing in a dream also could mean sorrow in wakefulness. Laughing in a dream also means that one will receive news about a newborn son.
If one’s laughter in a dream is as gentle and soft as a smile, then it denotes his good character and means happiness, or it could denote exactly what he shall see in wakefulness. Ifone sees the earth laughing in a dream, it means a good harvest in that land. Ifone sees a deceased person laughing in a dream, it means that he is in paradise, and enjoying the blessings ofthe hereafter. Laughing in a dream also represents Iightheadedness, frivolity and buoyancy. This is particularly true when it denotes capable people, or people in authority, where laughing in a dream could mean their dismissal from office. (Also see Crying; Laughter)... Islamic Dream Interpretation
Dreams of an otter symbolize joy, playfulness, and buoyancy. Because the otter lives in and near water this symbolizes creativity and that you are in touch with your feminine essence.... Strangest Dream Explanations