Three Ming Tonghui will explain: Bing precedes Ren, followed by Wu and Ji.

Xinjin was born in the Chou month, and the winter month Xinjin is indispensable for the warmth of Bing fire. The moon needs to be adjusted by fire. Xin is soft gold and Ding fire will melt when burned, so take Bing fire first.

The Queen of Ren refers to the pattern in which Ren controls C and the God of Cookery controls Kill.

Wuji followed by Wuji means that if Ren is not available to make C, Wuji can also be used to convert C, but the pattern is much different.