Long ago Jesus who existed at creation, was given by God through the Virgin Mary in a miraculous birth to then become a sacrifice for every Man.....through His birth, life, death and resurrection.
All we have to do to live forever with him are 3 things.....it's as simple as A, B ,C
A.....Admit you are a sinner and repent (turn away) from your sin.
B......Believe Jesus is the son of God and that he came to be a sacrifice for sin, once and for all
C.......Commit to Him as your savior by putting your trust in Him....and then live by His tenants in the Bible.
If you are willing it's simple.......say this prayer by Billy Graham...
"Dear Lord Jesus, I know that I am a sinner, and I ask for Your forgiveness. I believe You died for my sins and rose from the dead. I turn from my sins and invite You to come into my heart and life".
And then follow Him.
Merry Christmas