Thank the Buddha, fortunately nothing serious happened.
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culture
阿弥陀佛 (Amitabha) is the Buddha of Infinite Light and Life, central to Pure Land Buddhism, which is widespread in China. The phrase is recited as a prayer and also used colloquially by non-Buddhists to express relief.
history
The name is a transliteration of Sanskrit 'Amitābha.' It entered Chinese through Buddhist scripture translations during the Han Dynasty.