Sitting opposite the Travel palace (遷移宮), this configuration occupies the Self–Travel (命遷線) and forms part of the chart’s primary life-direction square: Self · Wealth · Career · Travel. Qi Sha does not undergo the Four Transformations directly — expression decided by company.
Classical commentary marks this configuration with 七殺居命, 為人勇敢果決, 喜怒形於色 (‘Qi Sha in the Self palace produces decisive courage with emotion shown openly’).
The textbook reading: chart-holders relate to personality and life direction through general — decisive force, irreversible commitment. Common signatures include founders, military officers, surgeons, athletes in contact sports, leaders of irreversible high-stakes ventures. Qi Sha’s characteristic risk — decisive action that becomes self-destructive when the Four Killings sit in or oppose the palace — surfaces specifically through personality and life direction when supporting conditions are absent. Pairings with Wu Qu reinforce this picture; pairings with the Four Killings (擎羊, 陀羅, 火星, 鈴星) sharing or opposing the palace can flip it.
The four layers a practitioner-grade reading examines but this reference does not develop: which auxiliary stars (左輔, 右弼, 文昌, 文曲, 天魁, 天鉞) share or oppose the palace, whether any of the Four Killings (擎羊, 陀羅, 火星, 鈴星) sit in the same or opposing palace, whether self-transformations (自化) on adjacent palaces alter the configuration’s energy, and how the current 10-year and annual luck cycles activate or suppress what sits in the Self Palace and the opposing Travel Palace. Synthesising these layers across a real chart is the practitioner skill the Zi Wei Dou Shu Masterclass teaches.