This is a question that people have asked since the dawn of time.
The meaning of life constitutes a philosophical question concerning the purpose and significance of human existence. This concept can be expressed through a variety of related questions, such as
- Why are we here?
- What's life all about? and
- What is the meaning of it all?
It has been the subject of much philosophical, scientific, and theological speculation throughout history. There have been a large number of answers to these questions from many different cultural and ideological backgrounds.
Albert Camus observed, we humans are creatures who spend our lives trying to convince ourselves that our existence is not absurd.
To read some examples of the hundreds of possible answers, see Wikipedia's entry on "The Meaning of Life".