John 14:2-3 “In my Father’s house are many mansions: if it were not so, I would have told you. I go to prepare a place for you. And if I go and prepare a place for you, I will come again, and receive you unto myself; that were I am, there ye may be also.”
Heaven is a real and literal place. Jesus went to a place where He will take the Church when it is raptured; which is, of course, the whole purpose of the Rapture, that we will be taken to Heaven. (It will not be a yo-yo Rapture, as post-tribulationists believe in, wherein the Church goes up into the air and then comes right back down to earth again for a judgment and/or for the Kingdom Age.)