There is another question: that Christ gave his life to save the world. This only explains sacrifice: no man in this world going toward the goal will escape from the test to which life will put him. That test is sacrifice. At every step towards the attainment of the final goal, he will be asked a sacrifice, which will be a greater and greater one as he continues on the path. He will arrive at a point where there is nothing, whether his body, mind, action, thought, or feeling, that he keeps back from sacrifice for others. Thus man proves the realization of divine truth. In short, the Christ-ideal is the picture of the perfect man. The explanation of the perfect man, and the possibility of the perfect man, can be seen in the verse of the Bible: "Be ye perfect as your Father in heaven."