4 definitions
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Prajna (n.) is a kind of ignorance: since ultimate reality is not a thing and cannot be an object, direct insight knows it by not knowing.
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A River (n.) racing to flood the land does not flow, for past things stay in the past and present things in the present.
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Spirit (n.) does not calculate, yet answers whatever the moment requires; it lies beyond the world and stays forever within it.
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Wisdom (n.) knows not, yet it lights up the deepest profundity; it lies outside affairs, yet never lacks them.