In Korean Protestantism, what is the position of Kwonsa? In the Presbyterian Church in America (PCA), a conservative Presbyterian denomination, there is a sizable contingent of Korean-Americans – they make up 12% of the denomination's members and have 212 churches (source).

These churches often have a position called kwonsa or kwon-sa, which, as I understand it, is for elderly women who are recognized as spiritual pillars of the church.  In the PCA, where there are no female church officers, these kwonsa are neither elders nor deacons, and thus do not have official spiritual authority.  However, I'm not sure that that's the case more broadly in Protestantism.  

Thus I'd like to better understand 1) what kwonsa are, in the context of Protestantism, and 2) how the position is commonly seen to relate to "traditional" leadership positions like pastor, elder, and deacon.  

That is, I'm looking for an overview answer that attempts to explain, at a high level, the role of kwonsa in Korean-culture Protestantism, particularly in relation to other church leaders.



I'm aware of the existence of a Korean Language Stack Exchange, but I ask this question here because my query is not merely linguistic, but rather primarily about how this role is understood in the specific context of Protestantism.
From Buddhist and Protestant Korean Immigrants: Religious Beliefs and Socioeconomic Aspects of Life by Okyun Kwon (LFP Scholarly Publishing LLC, New York 2003):


  Congregational Structure &amp; Female Leadership Positions
  
  ... An elder takes care of one or two parishes, but he situates
  himself as a nominal lay leader in the parishes he takes charge of by
  exercising a minimal authority in the parish's religious activities. 
  The head pastor appoints usually a female deacon to each parish as a
  practical leader who actually takes charge of the parish's religious
  activity.  The appointed practical leader is named as ku-yok-jang in
  Korean, which means a district leader.  This lay leadership position
  has been recently invented by the Pentecostal-line Korean churches. 
  The role of the practical parish leader has been recognized by church
  officials in expansion of Christianity in Korea.  Recognizing the
  importance of the role of the practical parish leaders, who are mostly
  female, in recruiting new members, many Korean churches put an
  increasing emphasis on the position.
  
  Between male elders and female practical parish leaders, another
  female lay leadership position is situated.  This lay leadership
  position is called kwon-sa in Korean, the highest lay position given
  to female members in the majority of Korean Protestant churches.  The
  kwon-sa is expected to mediate, support, and encourage parish members to participate in religious activities at both the parish and
  congregational levels, but like the male elder position in many cases
  it is nominally given to the devout female elderly members.  They are
  expected to be female spiritual leaders in the congregation.  In these
  three layers of parish leadership hierarchy, another intermediate
  level female lay leader, called a kwon-chal, is situated.  The
  kwon-chal, which literally means both supervision and encouragement, has become the second-highest lay leadership position given to female
  members.  as the name of the position implies, the kwon-chal's major
  role is to encourage and support the parish members' religious
  activity participation.
  
  All these women's lay leadership positions have first been created by
  Korean Pentecostal churches not only to give special recognition to
  women's roles in church formation, but also to provide a leeway for
  women's lay leadership positions in churches as against the already
  existing male-centered church hierarchy.  Soon after these Pentecostal
  churches achieved a high level of success in church growth by
  developing women's leadership roles, many conservative mainline
  churches began to confer female members the same leadership positions
  for the same reason. ...