When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.

而我们知道,物体是否对可见光透明，这里是神秘的材料，这里是可见光。

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There should have been no mystery or surprise about what he said.

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But occasionally finders are rewarded with something with meaning or mystery.

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Sure, you could just make something up when faced with the Whats, Hows and Whys, but it would be better still to actually determine a response in which you genuinely believe, even if that belief is newfound, and even if that belief is shrouded in mystery or fantasy.

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