梦以暖树凉时阴若是凉夜已成梦
[mèng yĭ nuăn shù liáng shí yīn ruò shì liáng yè yĭ chéng mèng]
A poetic phrase conveying how dreams and reality blend; during the time when trees cast cool shadows under the warmth of the day, and cool nights feel so dream-like as if all becomes one with dreams, highlighting a state of tranquil dreaming.