Believers today may have the same fellowship with God that the apostles had. That fellowship is only possible through the manifestation of a person, the Word of life, for God reveals himself to his people only through Christ.
It is a great source of joy for those who know the glory of Christ to share his glory with others and to see others also appreciate his divine being.
Far from making men miserable, the true religion is designed by God to give us as much joy as it is possible for us to experience.
The Christian religion does not involve the worship of a God who is far off and a stranger to his devotees, but one who is willing to enter into the closest possible relationship with them.