The Bible teaches that we are changed by the things we behold (Proverbs 23:7). This describes a law of the human mind which says we become what we look at! Every person with which we have contact and each event we experience in life has a positive and a negative aspect. The natural tendency is to focus on the negative because that is most what we are like.
Scripture certainly presents the negative side because it is reality, but usually doesn't dwell on it any more than necessary. Satan and his methods are a real part of scripture reality. However, it is possible to focus our minds on that part until we become like that. Violence, lying, bloodshed, betrayal, pride, greed, and many other evil characteristics are a part of what was revealed for what it was by Christ during his life here on earth.
Gentleness, forgiveness, humility, truthfulness, justice and mercy are also all revealed in Scripture and the life of Jesus. To expose ourselves to the negative traits of Satan will make us more like him. However, as we spend more time in the Bible, guided by the Holy Spirit, we will behold both the positive and negative realities of life in their proper balance. The outcome of those activities will result in our being changed to become like Him. What a change that will be!
Jesus frequently taught spiritual lessons using the physical world for visual aids, but those who listened to Him seldom perceived more than the visual aids He used. Will viewing Mel Gibson's movie The Passion of the Christ forever sear into our emotionally responsive mind the bloody physical picture of Christ's death and, thereby, obscure the deep spiritual lessons available to us by studying and meditating on the whole Bible account of Christ's life here on earth?
Could it be that as we become more like Jesus by His Grace – that blood, guts, gore, and violence will no longer be attractive, and we will avoid it whenever we can?