Christians are believers and followers of Jesus Christ. They are called Christians because they live a Christ like life. Do not be miss lead because some people may call themselves Christians but in their hearts they are not. Christians are those that love and keep His commandments (John 14:15, John 15:14).
There are promises in the Bible directly telling what a Christian will experience when they die. I need not reinvent the reality of what happens when a Christian dies but there are already people that have shared their experience on the subject. Allow me to reference Dean Braxton who had an encounter in heaven. Enjoy the video below.