"Ma Qian Ke" is also called "Ma Qian Shen Ke". It is a work written by Zhuge Liang, a famous military strategist, statesman, essayist and inventor during the Three Kingdoms period. Literally speaking, it means to divine a lesson in front of the horse before sending troops, which means hexagrams. It tells the hexagrams in various historical periods from the Three Kingdoms period to the "Datong" society, with a total of fourteen lessons.