“Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.”  
2Corinthians 5:17

The first instruction he introduces to our lives immediately we get born again; immediately we become new creations is to “behold”- to look. He wants us to see consciously that things are different; that the old is gone and the new has come; he says see!
See that the old limitations are gone; that where you were born and your current environment can no longer the determine the extent of your progress in life. See; that nobody can look at your geographical location or family and decide how far you would go in life, for the one who is born again he says:
“The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit.”  John 3:8
Everyone born again is like the wind that goes where he wants to go, people just hear the sound but can’t tell the origin or the destination! He says behold, this is now your life!
See that when you got born again, sin and sickness have no more dominion over you! You don’t have to sin or be sick anymore- you can decide to live in righteousness and in health and no demon can shake that decision:
“Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.”  Romans 6:11
“Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed.”  1Peter 2:24
Things have changed now! The word of God says see- and live accordingly!