When the world was young, and men like Lao Tzu amazed and impressed others simply by managing to be both old and alive, the absolute upper-limit of both the apprehension of reality by All Things Living (God; Awake) and that very same reality verily-so-realized was in so radically-different form that its more sophisticated expression was always bound to a shorter lifespan than its simplest. Their preservation remains, of course- they can be gone into at great length, for great length they require.
Yin-yang you can observe within any single breath.
Ask Christopher Langan about self-reference, if he'll deign to dizzy you confidently proving all of it.
An old koan breaks the partial understanding by driving attention to semantic contradiction. What help is it to visualize a falling tree with no human ears for witnessing its sounding? We think much more clearly about the living nature of trees themselves; this koan is stale.
Meditate upon geometry though, and you might witness more sharply than Lao Tzu had eyes for. Move your breathing into multidimensionality, join Sagan and Hawking. Goswami can tell you in another language the same that Chrstopher can't but use his to confirm.