When I went to burn incense, the incense was burned up and down together. What happened?

This is called "furnace burning", and legend is a good sign.

Every time you burn incense, you will always leave a fragrant root in the incense ashes. After a long time, there will be more and more fragrant roots in the incense ashes. Because of the different quality of incense, some incense burns at a higher temperature and is not easy to go out after burning to ashes. Moreover, the previous fragrant roots were all lit, and many fragrant roots burned slowly in the ashes, which was not easy to be found.

Incense ash has the function of heat preservation, so it will burn for a long time. At this time, if you burn incense again, because the roots of incense are embedded in high-temperature incense ashes, the top is burning, but in fact, the bottom is also burning secretly until the incense falls down.