White Heaven

After a tribulation thinned his foundation, Chu Du forced his way past the heavenly wind qi wall and went far into white heaven, exploring it to restock his resources. He made some profits but suffered injuries; healing them cost him heavily overall. From that exploration he obtained three hundred kilograms of true heaven silver, a material extremely rare even in treasure yellow heaven. ^{ch. 755}

When the second wave of tribulation sends white light deer charging out of the sky, watching Gu Immortals remark that destiny light deer carry nine colors matching the immemorial nine heavens, and judge that these white ones should come from white heaven. ^{ch. 1008}

Qi tides from the fused five regions sweep the whole world, and black heaven and white heaven are not exempted; wherever a qi tide reaches, grotto-heavens can no longer stay concealed. Many grotto-heavens hide within black and white heaven. After humans dominate the five regions, variant humans choose black and white heaven as top places to relocate; those heavens become their foundation while human Gu Immortals mostly explore them for resources and rarely place grotto-heavens there. ^{ch. 1969}

White heaven has a part above the Eastern Sea that Gu Immortals can gather information about. ^{ch. 2010}

The sun travels east to west in white heaven; when the heavens swap, night covers the five regions; then, in white heaven that is above black heaven, the sun returns west to east before they swap again. When white heaven and black heaven are absent from the sky in a strange recent change, day and night can no longer be told apart. Now that the two heavens are fusing, black clouds block the sun’s once unobstructed route and dissipate in large part as it advances. ^{ch. 2226} As the fusion of white heaven and black heaven reaches its most intense moment, day and night alternate rapidly over the five regions, and even the sun’s route changes, obliterating the black clouds and a soul beast army in its path. ^{ch. 2233}