Every person has a worldview whether he realizes it or not. What is a worldview? James W. Sire defines a worldview as:
Commitment, a fundamental orientation of the heart, that can be expressed as a story or in a set of presuppositions (assumptions which may be true, partially true or entirely false) that we hold (consciously or subconsciously, consistently or inconsistently) about the basic constitution of reality, and that provides the foundation on which we live and move and have our being.
Stated more succinctly, "worldview is simply the total set of beliefs that a person has about the biggest questions in life." F. Leroy Forlines describes such questions as the "inescapable questions of life." Life's inescapable questions include the following: "Is there a God? If so, what is He like? How can I know Him? Who am I? Where am I? How can I tell right from wrong? Is there life after death? What should I and what can I do about guilt? How can I deal with my inner pain?" Life's biggest, inescapable questions relate to whether there is a God, human origins, identity, purpose, and the hereafter, just to mention a few.