Literature Reference: Qin issued the decree to expel guests, and power returned to the Prime Minister Li Si. Source from 'Du Qiuniang Shi'.
秦: The name "Qin Guo" embodies the virtues of magnanimity and lofty aspirations, auspiciously conducive to the flourishing of one's career.
因: The cause, the reason, the pre-existing conditions that lead to the occurrence of an event.
Meaning: The decree to expel guests in Qin led to the concentration of power in the hands of Prime Minister Li Si, symbolizing the gathering of authority and wisdom.