长发飘飘心情如水短发悠悠热情似火
[zhăng fā piāo piāo xīn qíng rú shuĭ duăn fā yōu yōu rè qíng sì huŏ]
A poetic way of expressing changes in appearance and inner world. Long flowing hair corresponds to emotions calm as water (serene). Short hair evokes a passionate feeling similar to a raging flame. It shows contrasting personality features or phases.