^ The Chinese word used here for "white" (bai - 白) can also mean bright, clear, clean, pure, and empty—therefore all possible qualities of a perceived or imagined or visualized qi.
Hirsh Diamant. About Qi, Lu Dongbin, Immortality, and Self-Cultivation.
Akrishi. The Hundred Words Stele, by Lu Dongbin, and commentary by Zhang Sanfeng
Ancestor Lü. The Hundred Characters Tablet - Compare. Scribd.com
Thomas Cleary. The Taoist Classics, Volume Three. Shambhala, 2000.