What does it mean to go white from tonight? How much brighter is the moonlight at home! ?

What do you mean he knows the dew will frost tonight? How bright the moonlight is at home! ? Starting from tonight, I entered the Millennium solar term, and the moon in my hometown is still the brightest.

He knows that the dew will frost tonight, and how bright the moonlight is at home! This sentence comes from Du Fu's Moonlight Remembering My Brother in the Tang Dynasty. When Du Fu wrote this poem, the Anshi Rebellion had not been settled. At that time, Du Fu's younger brothers were scattered in this area, and because of the war, there was no communication, which made him feel intense anxiety and yearning. Remembering Brothers on a Moonlit Night is a true record of his thoughts and feelings at that time. In the poem, Du Fu knows that the dew will be frost tonight, and how bright the moonlight is at home! To express my yearning for my younger brothers, but also to express my sadness of being torn, displaced and homeless by the war.