Because He came ...
I have an abundant life.
A thief comes only to steal and to kill and to destroy. I have come so that they may have life and have it in abundance.
John 10:10 Holman Christian Standard Bible (HCSB)
This does not necessarily mean physical abundance,although sometimes God sees fit to bless in this manner. It means you have abundant life in the things that matter: love, peace, joy and the calm assurance of knowing that you are never alone. He walks with you in good times and bad.
Why would you want to live any other way?