To see a chainsaw in your dream, suggests sadness and bad feeling about something. Chainsaw might be a symbol of some drastic changes is about to happen. On the other hand, there can be different explanation, chain saw can be interpreted as symbolism of your quickness to understand issues in your life. Are you the person, who can get right to the heart of the matter quickly? The chainsaw may be seen as a male symbol, which represents phallus. In this case it refers to your hidden sexual passion and unfilled desires.
Read more about dreaming of Chainsaw in other dream meanings interpretations.