Dartboard in dreams typically represent accepting that you have a shot at achieving your ultimate goal and taking a shot at courageously making the first step. People tend to drift away from reaching the long-term goal and start believing that success comes with time. People who often cheated and have lacked courage did not make it to their goals. Meanwhile, people with a dartboard in dreams were always focused on opportunities they could conquer when they decided to do something new at work or in life; by practicing alone, they succeeded in real life.
Some people see dartboards in their dream as an opportunity to practice before taking a shot at a goal or opportunity in life. They also function as an emotive symbol for overcoming fear of failure, by being relentless and taking decisive action with hope at the end of it by throwing shot after shot at it.