Hearing complaints and lamentations in your dreams can be a reflection of a real life situation. It is possible that the dreamer is going through a repressed period of profound sadness and mourning and the cries he hears are the ones he would like to utter. If this is not the case, the cause of the cries is a feeling of guilt that manifests in the dream.
Gallery of dreams
Some people can recognize dreams while sleeping; this type of dream is called lucid dreaming. Most of the people would have experienced this type of dream atleast once in their life. You can actually control these dreams. One of the popular dreams that most of us experience is as flying in the sky; you can try lucid dream by imagining your house beside the flying aid.
Body reactions during sleep
Most of us must have experienced hallucinations or night mares. When we experience such dreams we are unable to move or react. This stage is referred to as sleep paralysis. This type of dream occurs in between wakefulness and REM. As it occurs during the REM stage, it causes complete muscle weakness preventing the individual reacting to the dreams.