To see a brush in your dream symbolises your desire to “brush” away problems or something in your life that needs to be cleaned up. Perhaps you are taking a nonchalant attitude to circumstances that need serious consideration.
If you lose or can’t find your brush, then it suggests that you are unable to sort out your problems.
To dream that you are brushing your hair suggests your need to organize and sort your thoughts. You need to search for some elements that are not clear. Brushing you hair may also highlight your preoccupation with appearances and beauty over substance and quality.