Existentialism centers on the idea that life, by itself, has no predetermined meaning. Instead, each individual must create meaning through their own choices and actions. This philosophy emphasizes personal freedom, responsibility, and authenticity in the face of an indifferent or even absurd universe. Instead of relying on external authorities or fixed societal norms, existentialism challenges us to confront the inherent uncertainty of life and to shape our own values and purpose.

Christian existentialism combines the core ideas of existentialism with Christian faith. It maintains that individuals must find personal meaning and authentic existence through their choices, while also recognizing a personal relationship with God as central. Unlike secular existentialism, which sees life as inherently absurd, Christian existentialism views existential angst as a pathway to discovering divine truth and purpose. This synthesis challenges believers to engage deeply with their faith, embrace personal responsibility, and confront the paradoxes of both freedom and divine order.