Green Heaven

Green heaven is listed among the immemorial nine heavens and is later destroyed with red, orange, yellow, azure, blue, and purple when Ren Zu’s son causes havoc, leaving only white and black heavens alternating between day and night. ^{ch. 466}

Wind knot grass is a round ball-shaped grass lantern. There is none in the five regions; it is a type of grass only found in green heaven of the immemorial nine heavens. Ren Zu’s ten children destroyed the immemorial nine heavens, causing fragments of immemorial green heaven to fall into the five regions. Only in immemorial green heaven would there be winds blowing all year around, at strange directions and angles. Countless plants would be uprooted or shaved until they were bare, and those twigs intertwine in the wind and slowly form into that ball-shaped grass lantern. ^{ch. 912}