In the arts, history, archaeology, the study of antiques, and similar fields involving unique or scarce artifacts from the past, and, with regard to documents in law, authenticity (Greek: αυθεντικός, from 'authentes'='author') is the truthfulness of origins, attributions, commitments, sincerity, and intentions; not a copy or forgery.
People in the postmodern culture seek real and authentic experiences in preference over scripted or superficial experiences. Emerging churches strive to be "relevant" to today's culture and daily life, whether it be through worship or service opportunities. The core Christian message is unchanged but emerging churches attempt, as the church has throughout the centuries, to find ways to reach God's people where they are to hear God's message of unconditional love.
Authenticity is also a technical term in existentialist philosophy. In this philosophy, the conscious self is seen as coming to terms with being in a material world and with encountering external forces, pressures and influences which are very different from, and other than, itself. Authenticity is the degree to which one is true to one's own personality, spirit, or character, despite these pressures. Existentialists see this process in different ways.
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