Daily sentence of Chinese idiom

6年前

bēi gōng shé yǐng
杯    弓     蛇    影
One mistakes the shadow of a bow in his cup as a snake，it means someone is extremely suspicious with fears caused by unreal objects.

杯：cup
弓（gōng）：bow
蛇（shé）：snake
影（yǐng）：影子，shadow