What is Christmas? Why Celebrate Christmas? Why is Christmas a pagan holiday?

I’m celebrating the earthly birth of my savior Jesus Christ, and just so we are clear, Jesus Christ is Alive! Not only that but he actually does give out gifts and he is a hero of this whole world, he’s the creator, he’s our savior, he’s the King of kings and Lord of lords, the only one who died and then rose again from the dead on the third day, the only one that went back up to heaven to create a place for us that is beyond our wildest dreams that we can live with Him forever and ever in his perfect world! My question is, Do you know him?