The meaning of life, or the answer to the question "What is the meaning of life?", pertains to the significance of living or existence in general. Many other related questions include: "Why are we here?", "What is life all about?", or "What is the purpose of existence?"
Is your question, "Why are we here?" or is it more like "What are we doing here, dying at around 75-100 years old and worrying about the many problems in the world"?