The whole quote of "May your porridge be warm" is from Shen Fu's "Six Records of a Floating Life".

The whole quote is: "I wish someone would **** with you at dusk, and someone would ask you if the porridge is warm."

It means wishing someone to **** with you to enjoy the sunset in the west, someone to clothe and feed you, and someone to ask you if the porridge is still warm.

The expression is that there are millions of models of love, but the best place is still companionship, only food and companionship can gently wrap the stomach and loneliness. Snow foam milk flower, polygonum mushrooms and artemisia bamboo shoots, three cups of two wild vegetables, with the morning sun or the afterglow, someone to accompany you together, eating this bowl of hot porridge ...... It is the flavor of happiness. You want to go to conquer the world, I just want to conquer a person's stomach and heart, beautiful love.

Expanded:

The Six Records of a Floating Life is an autobiographical essay written by Shen Fu (沈复), a native of Changzhou in the Qing Dynasty (Chinese: 三白; pinyin: 梅逸), in the thirteenth year of the Jiaqing reign (1808). The remnants of Six Records of a Floating Life were found in a cold stall in Suzhou by Yang Cuichuan, the wife and brother of Wang Tao of the Qing Dynasty, in four volumes only, and were handed over to Wang Tao, who was then presiding over the declaration of the Wenzunge in Shanghai, and published on movable type boards in 1877.

The word "floating life" is derived from Li Bai's poem "Preface to the Spring Night Banquet in the Peach and Li Garden", which reads: "Heaven and earth are the reverse of everything; time and light are the passers-by of a hundred generations. And floating life is like a dream, what is the joy of it?" The first is the "The Dream of the World".