What does it mean to open an altar to tell fortune?

The altar is a small vessel with sacrificial function, made of ceramics, and a few of them are bronze, which is similar in shape to incense burners and tripod statues.

"statement" naturally refers to Buddhism; "altar" is a high platform for ancient sacrifices, oaths and sermons; The Tanjing written by Huineng, the sixth ancestor of Zen Buddhism, is the only work of China monks that can be called "Jing". Therefore, "Kaitan" is a Chinese vocabulary under the influence of Buddhism.