What Would You Say in a High School Graduation Speech?

Questions about what we would say in a high school graduation speech if given the opportunity, how to talk to talk about eternity with a six-year-old who is disturbed by the thought of Heaven never ending, and where Jesus is now if he has a body.  

• If you had the opportunity to give the high school graduation speech, what would you say?
• How should I talk to my six-year-old about eternity when she struggles with the thought of it never ending and says she wishes she would have never been born so she didn’t have to live in Heaven forever?
• If Jesus has a body, where is he?