To be extremely diligent and ascetic in spiritual practice, often implying very little rest or sleep; to practice profound self-discipline, especially in a religious context.
那位禅师为了寻求真理，常年胁不沾席，苦心钻研佛法。
That Zen master, in pursuit of truth, practiced diligently for years, rarely resting, and painstakingly studied Buddhist scriptures.
Era:
Ancient
Frequency:
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