Once you've come full circle, you're ready to join the Lord.
The following passage from John is interpreted by many to mean that Jesus was God in the flesh. To better know "His Children," He needed to have the human experience. In other words, God, because of His Love for His Creation, came to us in human form with the full knowledge that He would ultimately be the sacrifice that would ensure salvation for believers.
John 1 1In the beginning was the Word, and the Word was with God, and the Word was God. 2The same was in the beginning with God.
The point of sharing this passage is to help explain why some believe that we continue to return until we've had the "full" human experience ... and then we join our creator. If one believes in this philosophy, it removes the question of why it appears some people "have the life," while others don't. This line of thinking levels the playing field, so to speak. In other words, we all get our "fair share" of joy and grief.
To believe or not to believe ... that is the question.