If you have seen a knife in your friend's hand in your dream: Making changes in some of your behaviors or tendencies can enable you to move in a positive direction, there may be exactly the kind of developments you want. To see a knife in your friend's hand in your dream refers to investing in profitable works, gaining financial comfort, increasing success, and finding a new job. A good person who sees the dream predicts that he will experience bad events in return for his pure feelings and behaviors, and coughing while smoking narrates that health problems will increase. According to the Diyanet, this dream indicates that he will experience financial and moral collapse as a result of harm from someone he sees close to him, that he will realize too late that he is not equal to him, and that he will have hard and bad days because of this.