Answer: A systematic, oppressive treatment based on racial group membership and the beliefs, behaviors, institutional organizations, or attitudes that favor one group over another.
Explanation:
The Gelug sect of Buddhism is the newest sect of this religion/philosophy. It is the one that actually has established the Dalai Lama, which is the most important figure in this sect. The Dalai Lama is viewed as the incarnation Avalokitisvara, a Bodhisttava of Compassion. Also, the Dalai Lama is considered as the spiritual leader of the Gelug Buddhism and he is the highest religious authority, which over time even became a political authority. This sect of Buddhism has become dominant in Tibet and Mongolia.
Because belonging to the church (being a church official such as a priest or a bishop) esentially meant you were given education (not common or at all present in those times) and a good position with a pay. You also exerted a lot of power in your local or regional community as church officials were considered to have been influential figures in medieval ages.
East is forward, west is backwards