When Jesus said those words, He wasn't just giving us a prescription for getting to heaven. He was telling us how to live a superior life right here on earth.
You see, there's a high life that we can live right here, right now. But to get in on it, we have to lay down the way of life that most of us are accustomed to. We may have to let go of the very things we've been trying so hard to latch on to. We have to set our hearts instead on doing what God wants us to do.
That's what Jesus did. He didn't live His life for Himself. He lived it completely for God. He did only what the Father told Him to do—and He lived in total victory.
It's time to realize that getting born again is not something we do just to miss hell. Our purpose is to please God—to lay down our lives in order to fulfill His desires. To be His special possessions in the earth and to do whatever He tells us to do. Our top priority is to give ourselves to Him and to live in communication with Him. To spend enough time with Him that we can hear His voice and respond in obedience.
Only when we do that will we be genuinely fulfilled. Only when we do that will we be able to live the high life we've been longing for.