Sun Su Chen (孫素真) (16 October 1895 - 23 February 1975) was the 18th matriarch of
Yiguandao
Yiguandao / I-Kuan Tao (),; ko, 일관도, Ilgwando; th, อนุตตรธรรม, . meaning the Consistent Way or Persistent Way, is a Chinese salvationist religious sect that emerged in the late 19th century, in Shandong, to become ...
. She was the successor of
Zhang Tianran, Yiguandao's contemporary founder. Sun was also known as ''Ming Shan'' (明善) or ''Hui Ming'' (慧明), her religious name.
Sun was born in Shan County,
Shandong on the 28th day of the eighth lunar month in 1895. She was introduced to Yiguandao in 1908 and became the student of
Lu Zhongyi. All the incident which was believed to be Heaven's will and lifted her as the incarnation of the Yuehui "Moon Wisdom" Bodhisattva, the counterpart of
Ji Gong. Heaven's will regarded her to hold the seat of the 18th patriarch together with Zhang in 1930.
After the death of Zhang in 1947, she took control of Yiguandao. Many of Zhang's followers followed her leadership. Only a small fraction stayed on with Madame Liu.
When the communists took over China in 1949, Sun moved to
Hong Kong
Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta i ...
. She then went to
Kuala Lumpur
, anthem = ''Maju dan Sejahtera''
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, pushpin_map = Malaysia#Southeast Asia#Asia
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, Malaysia for a short period (1951–52) then returned to Hong Kong.
In Hong Kong she was said to have left behind a large number of "heavenly mandates" (). To this day, there are a few elders in Hong Kong who are believed to be the keepers of these heavenly mandates.
In 1954, she moved to
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northe ...
. Because Yiguandao was illegal in China under communism, she kept a low profile and was kept under seclusion. She was sick in the last years and under the care of a nun surnamed Zhou in
Taichung
Taichung (, Wade–Giles: ''Tʻai²-chung¹'', pinyin: ''Táizhōng''), officially Taichung City, is a special municipality located in central Taiwan. Taichung has approximately 2.8 million residents and is the second most populous city of Ta ...
. Later she was under the care of
Wang Hao De until her death. She died on the 23rd day of the second l