This has been the case since ancient times. The poet does not write that he is pregnant with his wife, but imagines that his wife misses herself at the full moon, expressing his wife's "loneliness" with the meaning that his children (because they are young) "have not solved the mother's thoughts of Chang 'an", and then hopes to reunite with the prime minister and reflect the suffering of the people in troubled times. The text is concise, well-organized and touching.