- Chinese: 一指安魂
- Pronunciation: Yi Zhi An Hun
A form of acupuncture illustrated by Cao Cao to induce deep sleep on his target. As long as it hits the heart, the victim will stay unconscious for seventy two hours.
He once attempted to use it on Dong Zhuo, but failed to induce the effect due to the technique is required to point directly into the heart and Dong Zhuo's heart is placed on the right side.