Talking at night by candlelight refers to talking late at night with lighted candles. Metaphor conversation is very congenial and in-depth. It also means that someone works very hard and is very dedicated. It can also be described as "we told each other secretly in the quiet midnight world".
Source: Cao Pi's Book of Quality with Wu: "Young people should really work hard. How can they climb when the year is over?" The ancients thought that it was good to travel by candlelight at night. " It means advising an old friend to entertain himself when he is precious. Later generations used "a candlelight night tour" as a metaphor to eat, drink and be merry.
meaning: it is often used to describe a person who works and studies seriously and is very dedicated.
The antonym of talking by candlelight:
Eat, drink and be merry.
it means: lose no time and have fun.
Source: Nineteen Ancient Poems Born in Less than 1: "If you are happy, you can't wait to come here".
Definition: Life should be carpe diem! Why wait until next year?
Example: At this time, it's still far from the departure date, and it's just the right time. If you want to be sad, won't it turn all the good times into a sea of misery? ◎ Qing Li Ruzhen's "Mirror Flower Edge" sixty-eight times
Grammar: partial formal; As predicate, object, attribute, clause.
antonyms: Be prepared for danger in times of peace, be extremely happy and have sorrow, and work hard.