42 is the joking answer here. No, there is meaning to life. It really depends who you are talking to . A Christian or Jew would say that it is to please God. A Buddhist would say to live life like a good person so as to be ascended. Most people agree, however, that life is assigned the meaning you give it. If you believe that life is made to serve you, go for it! The second question now. This world is great because of life. I'd like to refer you to the Galaxy Song by Monty Python. It talks about how incredible the universe is, how unlikely ot is for us to even exist. And answering your final question: yes. The future may appear grim due to what is seen on the news, but while there is evil, greatness occurs. Science is progressing faster than ever before. We are slowly eradicating terroristic threats, and the standard of life for all will increase. Life is amazing, and the future promises great things ahead.