Our Scripture reading today is Colossians 1:12-14.
Verse 13, "Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son:"
Yes, there is a dark side in this world today, and it's not something Hollywood made up.  Ever since Satan decided he wanted to be like the most High God, there has been a power of darkness.  Isaiah 14:14, "I will ascend above the heights of the clouds; I will be like the most High."  Satan is powerful, but not all powerful.  Satan is wise, but not all wise.  His darkness continues to permeate this world, but thankfully God Almighty has provided a way for victory.  He is the LIGHT!  
If you have turned to Jesus Christ for salvation, you are no longer under this power of darkness.  You have a new King and master!  One Who rules with love as His throne.  I really like what Spurgeon has to say regarding this verse, “Beloved, we still are tempted by Satan, but we are not under his power; we have to fight with him, but we are not his slaves. He is not our king; he has no rights over us; we do not obey him; we will not listen to his temptations.”  All that we are and have belong to the LORD.  He alone is worthy of our worship!