Many times throughout the gospels, Jesus preached that He is life. He is life, in Him is life, and He alone can give life. Life as evidenced here on earth, in no matter what form, is a symbol of Him and a manifestation of His glory. Only God can create life. Only God can give life, and only by believing in Jesus can we receive eternal life.
This is why life is so precious.
Life is not something that you and the next guy can create. Not even scientists can just up and breathe life into an inanimate object. Life is something that only God can produce.
God has given each and every one of us life to some degree. We are all breathing and our hearts are beating. Plants also are alive, and animals, and yet we have souls, which differentiate us from them. It is because of the immortal soul that God has given to man that a human being in a coma, is very, very different than a vegetable. It is insulting to God and the human race to make such a base comparison. And yet although we as humans have souls that will exist forever, not all humans have received the gift of eternal life, which again, God alone can bestow.
1 John 5:11-13 And this is the testimony: God has given us eternal life, and this life is in his Son. He who has the Son has life; he who does not have the Son of God does not have life. I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life.
God alone can give us life--here on earth as well as eternal. Life, therefore, is an attribute peculiar to God alone. This is why Satan hates life. It reminds him of God, the only one who can create life. When we see the Mona Lisa, we think of Leonardo da Vinci. When we hear the Messiah, we think of Handel. And when we see life, we should think of God, the creator of it.
Satan does all in his power to destroy life--as much life as he can--and especially human life, because it is the most precious, for it contains an immortal soul. In this way he attacks God, by destroying His best creation.
John 10:10 The thief comes only to kill and destroy; I have come that they may have life, and have it to the full.
And many have died over the years of history as a result of Satan and his servants. Take for example abortion, or the many holocausts. Death is Satan's trademark, and his way of twisting and distorting the beautiful thing God created called life. However Satan can kill the body, but he cannot kill the soul. The martyrs are a beautiful example of this. Men who did not fear God (and any who do not fear God serve Satan) rose up with a mind of hatred towards the children of God. They sought to murder and destroy all they could. They killed many, many innocent people. And yet the blood of the martyrs is seed for the cause of Jesus Christ. The martyrs gave their earthly lives for Christ, and went to live with him forever. In doing such they were a thundering witness to the world around them. Many more came to know Christ, and to accept the gift of eternal life because of them.
It is because Jesus is life that life is the most precious thing on earth. And it is because life is the most precious gift, that the giving of one's life for others, which is called redemption, is the most noble, beautiful, amazing thing there is.