再眺望已是初春再回首已是深秋
[zài tiào wàng yĭ shì chū chūn zài huí shŏu yĭ shì shēn qiū]
Translated as 'When glancing again it is early spring; while looking back it has turned deep autumn', reflecting the rapid passing of time and change in scenery, reminding us the impermanence of moments, and how situations or moods evolve unexpectedly.