GOD'S NEW WORLD
At a young age, Kal-el escaped the explosion of his original planet, Krypton, and landed on Earth. On the new world, he has superhuman powers and became Superman. But whenever he goes near Kryptonite, fragments of his former world, he becomes very weak.
"Therefore, if anyone is in Christ, he is a new creation; the old has passed away, the new has come." 2 Corinthians 5 17
When we ask Christ into our life, we become a new person, with new powers. He invites us to cast all our cares upon him, trusting that he will do the best for our new life. But the more we go back to elements of our former life - worry, anger, envy - the weaker we become.