I believe that Jesus Christ is the Son of God, the second person of the Holy Trinity, who was incarnate as a man, was crucified and died for our sake, and rose again from the dead. I believe that man was created good in the image and likeness of God, but God in his love gave us the free will to reject him, and that mankind, through our free will, is in a fallen state. I believe that God instituted a plan for our salvation, beginning with the revelation to Israel and culminating with Christ's sacrifice.
In a logistical sense, these are many of the core beliefs of Christianity. They are not necessarily at odds with more abstract conceptions, but are in my view the most straightforward answer to this question.
TJ's reply seems very logical to me. He identifies as a Christian because he believes that. That's why he feels attracted to Christianity.
