(Lunar calendar) October 23rd, Gengyin year.
Eight characters: Geng Yin Ding Hai Renwu Wushen
Five elements: golden wood fire, water, fire, earth and gold.
Yin Na: The soil on the pine and cypress cabin is willow.
The number of eight characters and five elements is 1 wood 2 fire 1 soil 2 gold 2 water. Five elements are not lacking.
Name: sapphire (indomitable spirit, a man's courage) (from the song dynasty poet Su Shi's "Hunting in Jiangchengzi Mizhou", … attracting yellow on the left and blue on the right … ")