After Adam Schall took over the Qing Astronomical Bureau in 1644, he advocated New Method vigorously.Not only did he delete Ziqi, but also reversed the definitions of Rahu and Ketu.

• 四馀虽原多具有推步天行的积极意义，但在天算与术数密切结合的中国社会中，其原始的天文意义渐被淡化，并因此演变成具备明显的形像与神格，以为吉凶趋避之用。