Human existence inevitably involves constitutive paradoxes such as striving for connection together with independence, self-focus together with self-transcendence, and infinite choices in a finite being. The capacity to be aware and hold such tensions and dialectics in a coherent manner is encapsulated in the existential construct of authenticity. The art of living an authentic life in the face of life's inevitable limitations and complexities engages the full scope and aspects of being human. Since the ancient aphorism of 'know thyself', the human pursuit for self-knowledge and authenticity has been explored through philosophy, art, and traditions, and also pervaded popular culture, movies, literature, and music. Moreover, the idea of authentic human behavior and experience has pervaded contemporary society and discourse from 'reality TV' to self-improvement literature, targeting the meanings of 'true' or 'real' vs. 'false' experiences and behaviors. However, it is important to note that authenticity in that sense is often associated with arguments about self-centered attitudes and reduced empathy for others (e.g., Hookway, 2018). This chapter attempts to frame the construct of authenticity especially in terms of lived experience, and identify potential implications of this outlook in terms of psychotherapeutic interventions.