Meaning
Usually drawn as a simple figure kneeling with head bowed, often inside a square like a public sign. It is meant to mark a place of worship or a prayer room, without pointing to any single religion.
Besides real prayer, fans use it half-jokingly to show they practically worship someone’s talent or a flawless performance: “That high note at the end 🛐🛐” It works the same way for a brilliant cook or teacher, and pairs with 🙏 or 😭 when you are overwhelmed.