With respect to evil spirits imposing their authority through the mind, the mind of man plays a critical role in everything they are undertaking. It's obvious that man cannot do anything without planning it or thinking about first. When it comes down to dealing with temptation wisely, the mind is the first part that must be taken into serious consideration. The main reason is that it's where every temptation starts. The enemy knows that very well. If he can control people's minds through deception, he'll be able to run their lives by imprinting all kind of destructive beliefs contrary to the word of God.While making this post, those who are atheist just pop up into my thinking. Many of these people are quite good in advancing rational and logical argument against the gospel while failing to realize the very things they're holding unto have the potential to keep them in captivity definitely to the extent they may well end up dying without Christ. Sadly, when they don't have an answer for something, they'll tell you that they'll we wait for more evidence through scientific research on that matter. So their minds are clouded to the degree they'll risk their eternity by waiting for years and years for scientific evidences that will never change the fact that God actually exists. People who've allowed the enemy to build strongholds in their mind tend to believe that they are wise and smart while they are bunch of fools.