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Summary: Zhongfeng said, "The illusory students asked: 'why are pines straight, why are brambles tangled, why are crows black, why are swans white?' Then Zhongfeng said, "Obviously, the light of illusion makes pines straight...
Link: https://www.reddit.com/r/zen/comments/vsrf2w/why_are_pines_straight_and_brambles_tangled/