What would John Travolta and Kelly Preston be without their kids?! “Our children keep our interest in life very high,” John, 64, revealed to Us Weekly in the magazine’s latest issue, available on newsstands now. “Their future is very important to us.”

Kelly, 56, and John’s two children, daughter Ella Travolta, 18, and son Benjamin Travolta, 8, mean the world to them, especially after the couple suffered the devastating loss of their eldest child, son Jett Travolta, back in January 2009 when he was just 16 years old.

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One thing the doting parents revealed they’re teaching their kids is to appreciate everything that they have. “Helping anywhere that’s needed is the general idea. It could change each day,” John explained. But for right now, the actor just said he’s simply happy to see his children grow into young adults.

In a previous interview, John revealed their youngest son, Benjamin, helped himself and Kelly pick themselves back up after losing son Jett 10 years ago. “Certainly having little Benjamin has been a beautiful kind of glue for us to re-bond after a tremendous loss,” John shared on Good Morning America about his then six-year-old son.

During a 1994 interview that took place just two years after John and Kelly welcomed Jett, the actor told People he couldn’t imagine life without his firstborn child. “I can’t imagine what life would be like without Jett. After he was born and cleaned up, I held him for hours while Kelly slept. When they came to take him away for various tests, I said, ‘No, you can’t see him today. You’ll have to do it another day.’ I went a little nutsy,” John said at the time.

Jett Travolta Dies At 16
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John relied on Kelly to help him get through such a traumatic period in his life and has also credited his faith in Scientology for helping him find his purpose in life again. “The truth is, I didn’t know if I was going to make it. Life was no longer interesting to me, so it took a lot to get me better. I will forever be grateful to Scientology for supporting me for two years solid,” he once told BBC News in 2015. “I mean Monday through Sunday. They didn’t take a day off, working through different angles of the techniques to get through grief and loss, and to make me feel that finally, I could get through a day.”