Sanming TonghuiVol. 1, On the Nature and Fortune of the Sixty Jiazi (verdicts & remarks)
Yi Si Fire is lamplight, same as above, particularly delighting in Shen, You, and autumn. True Lu Horse, Great Defeat [Da Bai], Bent Leg [Qu Jiao], Missing Character [Que Zi]. Yi Si and Wu Wu are fires of blazing radiance.
In autumn and winter, they act as virtue and bring auspiciousness; in spring and summer, they act as punishment and bring misfortune. If sudden scorching heat erupts in midsummer, it promptly turns arid and completely incinerates, harmony turning to calamity.
Yi Si is Fire of Approaching Officialdom [Lin Guan], with Wood above to generate it, so its qi is flourishing. Wu Wu is Fire flourishing of itself; if born in autumn or winter, it provides genial warmth and the virtue of nourishing all things.
If born in spring or summer, flourishing Fire meeting the yang position anew turns baneful; if born in midsummer, it produces those who are brutal, harsh, intolerant, and doomed to an untimely death.