Heaven, paradise or whatever your tradition calls it, whether its cannon or not is not important in this discussion is a place where people go to live their best lives in eternity. It is important how we treat others here as to practice for the after life. I believe its a place where we can do the things we love and break bread with other saints. There is room at the table for everyone and God has set a place for each of us to be in communion with him and all the saints that have been there awhile. It will be a surprise who will be there waiting for us all. The here after begins in the here now.