迷途不知返路遥不觉晚
[mí tú bù zhī făn lù yáo bù jué wăn]
Roughly translates to 'Lost and do not return, far away yet no realization of nightfall.' It implies one might get so lost in pursuing dreams or pleasures that they overlook dangers and waste the best time without any awareness. Also it may reflect on missing the way in life and forgetting time passes by, emphasizing the consequences of being too indulged to realize changes.