If the sky is affectionate, it will be old, and if the moon is traceless, it will be long and round. How to understand the meaning of this sentence

If the sky is affectionate, it will be old;

All sentient beings will grow old and wither. Don't look at the sunrise and the moon in the sky. The situation is always new and never changes. If it has feelings, it will still age. The sentence "If there is love in the sky, it will grow old" should be absurd, which Sima Guang called "absurd". It effectively sets off the difficult situation and bitter feelings of the golden bronze immortal (actually the author himself), with a broad artistic conception and deep feelings, which is a famous sentence throughout the ages.

If there is no hate on the moon, it will be long;

"You can see the bright tears on her cheeks now, but not the man she loves so painfully." The moon moves down, from the first day to the fifteenth day, from the fifteenth day to the first day, and the full moon is impermanent. There is no permanent full moon. It was like a flash in the pan, just a moment of beauty. Looking at the full moon and its absence, the new moon is like tears on the eyebrows, day after day and year after year.