Zen master
It is only surpassed by "Zenji" which is only applied to Dōgen and Keizan (the founders of the school), and to the current or former abbots of the two head temples of the sect.To attain supervisory certification requires not just high ecclesiastical grades and dharma seniority but also at least three years' experience as an assistant supervisor at a specially designated training hall (tokubetsu sōdō), during which time one undergoes an apprenticeship.Ideally inka shōmei is "the formal recognition of Zen's deepest realisation",[4] but practically it is being used for the transmission of the "true lineage" of the masters (shike) of the training halls.It is considered respectful to refer to senior monks or nuns in Korea as Kun sunim, and this polite way of expressing the title can also denote some sort of realization on the part of the individual being addressed.In Korean Soen, Inka (In'ga) typically refers to the private acknowledgement of dharma transmission from a teacher to their student."Lower" level is referred to as Ji Do Poep Sa Nim, or Dharma master (jido beopsa-nim; 지도법사님; 指導法師님).Ji Do Poep Sa Nim is a person who has received only Inka (which in Kwan Um School of Zen is given during public ceremony as well).A Soen Sa Nim can give both Inka and transmission to other individuals and keeps their title and teaching authority if they decide to leave the school.The term has entered popular culture and has been used to refer to any number of public figures in sports and entertainment, denoting a person who demonstrates detachment and control in stressful situations.