For the past two hundred years, aside from often discussing the Dao with Zhen Yuanzi, Li Yi had constantly pondered how to comprehend the realm of "All Things Reincarnation."
"All Things Reincarnation" was a step beyond the realm of "Self Reincarnation." It extended from oneself to others, encompassing a broader scope and reaching greater depths.
"All things" naturally included everything in the world, both living and nonliving. "Self Reincarnation" was something Li Yi had deduced based on his comprehension of the Power of Life, the Power of Slaughter, and the artistic conception of annihilation. Clearly, those prior insights were not enough to comprehend "All Things Reincarnation," since they had little to do with nonliving things.
After much painstaking thought, Li Yi finally found a way in: he would start with Yin and Yang. Everything in the world was inseparable from Yin and Yang and possessed both aspects.
Heaven and earth moved, Yin and Yang in order.
Water was Yin, fire was Yang; the moon was Yin, the sun was Yang. The places that most directly embodied both aspects of Yin and Yang were undoubtedly the Moon Star and the Sun Star!
Night was Yin, day was Yang; the moon's rising was Yin, the sun's arrival was Yang. The Moon Star and the Sun Star were the two most important of the three hundred and sixty ancient stars in the Primordial World. As rulers of the stars, they maintained the orderly operation of the entire Star Space, their mysteries unfathomable.
Therefore, Li Yi decided to first comprehend the artistic conception of the sun and moon, then use them as his guiding principles and the workings of all things as his lead, deducing the artistic conception of Yin and Yang.
Once he had a plan, Li Yi decided to bid farewell to