What's with the incense burner?

Incense burner is an essential instrument for "incense" and an indispensable instrument for folk customs, religions and sacrificial activities in China. Incense burners used in past dynasties include Boshan furnace, hand furnace, incense bucket, lying furnace, incense cone and other incense burners with different shapes, as well as auxiliary appliances such as smoked balls, incense plugs, incense trays, incense boxes, incense clips, incense shovels, incense spoons, incense cones and sachets. The main materials used are copper, ceramics, gold and silver, bamboo and wood utensils, enamel, jade and so on. It can also be used for many purposes, such as smoking clothes, furniture, or offering worship to Buddha. Generally square or round, the square incense burner generally has four feet; A circular censer has three legs, one in the front and the other in the back.

Furnace smelting is an alchemy instrument, a traditional technology for refining Dan medicine in ancient times and a pioneer of modern chemistry.

China has advocated and applied this method of heating and sublimating drugs since the Warring States Period, which is the earliest in the world. China's alchemy was introduced to Arabia in the 9th century and10th century, and to Europe in12nd century. There are two kinds of drugs made from alchemy: external use and oral use. External use is still very valuable, and internal use is gradually eliminated because of its great toxicity. The so-called "elixir" aims at "immortality". There are still scientists who are still studying immortality. Although they have not succeeded, it can be said that the concept of immortality is ahead of time. It may come true in the future.