We live in a world where threats pop up constantly. Having the right frame of mind to quickly handle the situation can mean the difference between life and death.
Put on the whole armour of God, that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
Spiritual Wrestlings 