If we are of Christ we are of the manifestation of God on, in, and through us. So to be of Christ, is to be a Christian, and to be a Christian is to be anointed of the spirit of God. It is a personal relationship, talking to, and hearing from God on a daily basis. Saved you are now of God and will have the promise of the next life. To be a Christian is to have all the promises of this life as well as the next and to know God now.
Most people have a big misconception of what church is, some think it is a building.
Others think it is where believers meet. Others think it is where 2 or more are gathered. The list goes on. Never did He say that was church, but it is closer to being true than the others. A building does not make a church.