White dragons can be split into two symbolic groups: lunar-white and solar-white.
Solar-white dragons are imbued with the power the sun, a symbol of holiness and purity.
A solar-white dragon is associated with a sun god or a powerful god of creation.
A lunar-white dragon symbolises death and rebirth.
It embodies a dangerous and ferocious supernatural power, likely associated with a moon god or a mother goddess.
In China, a white dragon is an omen of death, a warning.
White dragons are associated with the direction south.
Dragons of Fame: Pai Lung, O Goncho
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Source - http://www.blackdrago.com/colors_white.htm
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