The dictionary meaning of happy is feeling or showing pleasure or contentment. I think being happy is one of the most important aspects of life, this is because you can share your happiness with others. Also, if you are happy, you would probably smile at people which could even make their day. If you are happy, you can enjoy everyday and you would be positive and you can share your positivity with everyone. If everyone was miserable it would be awful because there's no joy or happiness to share with anyone.