What does "Gu Erdan" mean on the tombstone?

A tablet marking the auspicious days of the ecliptic in a certain period. In other words, people will be asked to find out when and when it is a good time to build a monument.

1, such as "Yue Gudan in the thirty-fifth year of the Republic of China", represents a monument of Meng in Ji Hitachi. Another example is "Ding Si, who is two years old, will go to beginning of autumn Middle School in Gu Huan", which means the same thing.

2. When explaining Memorial Day, many tombstones will use the words "Gudan", "Ji Dan" and "auspicious day".

3. The word "Gu Erdan" comes from The Book of Songs. Chen Feng. The East Gate. There is a saying in the poem that "Gu Erdan is poor and the source of the East". "Biography of Mao" explains: "The valley is good." "Gu Erdan" in Ci Hai means a sunny day. Therefore, the word "Gu Erdan" on the ancient stone tablet means a good day, which means that in a certain period, "the zodiac is auspicious".

Besides Gu Erdan, some tombstones also use words such as Ji Dan and auspicious day, which all have the same meanings as Gu Erdan. The use of these words, in addition to the pursuit of literal good omen, may often involve superstition of good words or bad words.