This is the meaning of hearing whispers in dream – you should pay attention to the small details in your life. You are unaware that even little, seemingly insignificant information, can be important.
Sometimes, there are other dream interpretations which may be relevant to you. Further dream analysis reveals that hearing whispers can mean you have to reflect on what is calling for your attention, but is not getting due focus.
A person who hears voices or whispers all the time, may be suffering from a mental disorder like schizophrenia. Causes for mental illness are stress, prolonged psychological trauma, unbalanced diet and other triggers. Professional diagnosis, counselling and medication will alleviate symptoms.