抖掉在心里的尘埃
[dŏu diào zài xīn lĭ de chén āi]
Literally translated as 'shake off the dust in your heart.' The idiom conveys a determination to rid one's self of emotional dirt accumulated within; to discard negative memories, unnecessary sorrows or trivialities, freeing oneself psychologically and spiritually and getting closer to purity and lightness once again.