Only when you have the details of your life under control are you ready for spiritual warfare. God demands from the volition of each believer to handle authority in life. Only then can the believer move on to effective combat in spiritual warfare. Knowledge of Satan is critical if we want to stand our ground. He was so brilliant in his defense against God that God created mankind to resolve the conflict.
Organization is the key to being effective.
Basically, what our soul breathes in from the world system is all controlled by Satan. He is all around us seeking for the vantage point in our soul to subtly infiltrate our system of thinking. The word opportunity is the Greek word topon and it means an opportunity, a room, a chance, a possibility, place, any portion or space marked off, as it were, from a surrounding space. Satan will use it to hinder or destroy your relationship with God. Many believers have a room in their soul where their imagination has been allowed to run rampant and idols are erected.