What does "fire in the furnace" mean?

A middle-aged life in the five elements of fortune telling corresponds to the years of Bing Yin and Ding Mao in the five lines of Yin Na.

That is, people born in Bing Yin and Ding Mao are doomed to "fire in the furnace".

Fire in the furnace:

The fire in Bing Yin Ding Mao's furnace: the fire in the furnace, heaven and earth as a furnace, Yin and Yang as charcoal, Teng Guang and the universe, Cheng Tao in Gankun. Add fire to this fire, and you will be happy to have wood. The wood of the flat land is the day when Bing Yin saw Ji Hai, and the day when you saw Wu Shu, it belongs to the library, followed by Ding Mao. However, the fire of Bing Ding has no wood, and the fire of Ding Mao is fierce without wood. Moreover, this fire is made of gold, and it is even more important for the gold party to adapt to the opportunity. However, Ding Mao has no wood and suffers from the hard work of the gold master. My husband and wife might as well see three or four trees when they see that there are many fires in the wood and there is no water to control. For example, when Geng Yin and Xin Mao were in power, they did not turn into real fire, and many of them were violence or illness. If there is a water system in heaven and earth, it is also the main life, and Ding Mao is just as well. Although this fire likes to take gold as its wealth, it has a golden seal and a sword inside, which can be seen slightly. Ding Mao's fire has lost its self and went out with the death of Shen You. How could he overcome poverty and die? Where there is gold in the sand and wax in the sea, there must be wood to welcome it, but it is useless to park it. When you see soil, you must first have gold and wood, but you like it so that it won't be too dry, such as the soil where the walls of the adobe houses in the city have been finished. Love wood first when you meet water, or fire will welcome it gladly. The clear water in the sky is lucky in life, but if there is no wood in the base, it is disrespectful. When you get to the sea, it's a treasure house, and when you get to Guihai, it's half bad and half good. Wells and streams are fierce and there is no wood. Fire sees the same kind, and the decline of the sun and the moon is auspicious. Thunderstorms and fires are useless. If there is seawater when the wood is growing well, it is not appropriate to have wood that meets water. The inflammation in the sky will be covered by the ground, and the wind will comfort the dead. For example, the fire of Bing Yin and Ding You is lifeless and expensive. If it is noon, Bing Yin will be restless.