《抱朴子·内篇·畅玄》
其沦落到大幽国则向下沉潜，凌越过北极星则向上游移。
沦大幽而下沈，凌辰极而上游。
When it descends to the Great Netherworld, it sinks downward; when it rises above the North Star, it moves upward.
<s>[INST] Convert the following English text into Classical Chinese: When it descends to the Great Netherworld, it sinks downward; when it rises above the North Star, it moves upward. [/INST] 沦大幽而下沈，凌辰极而上游。</s>
Convert the following English text into Classical Chinese: When it descends to the Great Netherworld, it sinks downward; when it rises above the North Star, it moves upward.
user
沦大幽而下沈，凌辰极而上游。
assistant