舊有此圖

太極未有象數，惟一氣耳。一氣旣分，輕清者上爲天，重濁者下爲地，太極生兩儀也。兩儀旣分，則金木水火四方之位列，兩儀生四象也。水數六，居坎而生乾，金數九，居兊而生坤，火數七，居離而生巽，木數八，居震而生艮，四象生八卦也。

End of chapter

Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji