Tàiyī Shēngshǔi was written about 300 BC during the Warring States period.
It is a Taoist creation mythology. The opening lines are:
The Great One Gave Birth to Water.
Water returned and assisted The Great One ,
in this way developing heaven .
Heaven and earth ,
in this way developing the "gods above and below".
The "gods above and below" repeatedly assisted each other,
in this way developing Yin and Yang.
Commentators describe Taiyi as a representation of Heaven , an impersonal "Watery Chaos" . At least one scholar interprets this as the "Supreme One", possibly Shangdi.
The Taiyi Shengshui was written on 14 bamboo strips in the Chu script. It was discovered in 1993 in Hubei, Jingmen. It is part of the Guodian Chu Slips .