I have come that they may have life, and that they may have it more abundantly. John 10 v 10 NKJV
To live life abundantly is not to have health and wealth, it is not prosperity and wordly gain. In contrary it is said we are to encounter persecution and times of suffering. We can fill our lives with all the excitement that life has to offer and still find life to be empty and unfulfilling. With knowing God and living fully for God there comes a new vitality, a superabundance of life. It is only when we live with Christ that life becomes really worth living and we begin to live in the real sense of the word.
But these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name. John 20 v 31 NIV