What does it mean to sit in a figure of eight?

For example, the eight characters of a person's life are: the ugly month of Bing Shen's year and the Geng Xu's time of Ren Yinri (Japanese sky: Tatsumi)

Vertical writing method:

Dry manufacturing: partial wealth is printed on the Japanese side.

Tiangan: Bing Xin Ren Geng

Ground branch: apply ugliness to attract deficiency (Tatsumi empty)

Rosary Shen Bing, sitting on Jin Shen with fire C, or sitting on Jin Shen's sickbed with fire C;