Life's a mystery, I guess you need to live life to find out. Other than that I guess its meaning is to sit back, enjoy the ride and do something worthwhile.
Noun life (plural lives) The state that follows birth, and precedes death; the state of being alive and living. He gave up on life. Having experienced both, the vampire decided that he preferred (un)death to life. The period during which one (a person, an animal, a plant, a star) is alive. [quotations ▼] The span of time during which an object operates. This light bulb is designed to have a life of 2,000 hours. The period of time during which an object is recognizable. The life of this milk carton may be thousands of years in this landfill. (biology) A status given to any entity including animals, plants, fungi, bacteria, etc. — and sometimes viruses — having the properties of replication and metabolism. (philosophy) The essence of the manifestation and the foundation of the being. [quotations ▼] (phenomenology) the subjective and inner manifestation of the individual. The world in general; existence. Man's life on this planet has been marked by continual conflict. A worthwhile existence. He gets up early in the morning, works all day long — even on weekends — and hardly sees his family. That's no life! (usually of a person) The most worthwhile component or participant [quotations ▼] A biography. His life of the founder is finished, except for the title. Something which is inherently part of a person's existence, such as job, family, a loved one, etc. She's my love, my life. (colloquial) A life sentence; a term of imprisonment of a convict until his or her death. (video games) One of the player's chances to play, lost when a mistake is made. Scoring 1000 points is rewarded with an extra life. http://en.wiktionary.org/wiki/life
