What would the world be like without the simple joys of life? If there were no smiles, no laughter, no happiness, no guilt, shame, or love. If we had no emotions at all, our existence would be meaningless. We would be cold and dry. There would be no care for our existence. We would be empty, and there would be no reason for doing anything. You wouldn't enjoy music, because there would be no harmony. You wouldn't enjoy the company of your friends because you couldn't share laughter. Without guilt or shame we could not correct our wrongs, but most importantly you couldn't enjoy the caring and love of your family.
Your life, your experiences, and the people in them are what makes your life meaningful. If you never give a smile, your life is sad. If you never share laughter, you are lonely. If you never experience love, you are lost.