thiaⁿ-hiuⁿ聽香

to take the first sentence heard after burning

to take the first sentence heard after burning incense as an oracle

English Wiktionary, “聽香” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%81%BD%E9%A6%99 · confidence: Medium (Wiktionary)