Christ taught a group of the descendants of Lehi (visiting them shortly after His Resurrection) that prayer is an indispensable form of spiritual protection.
“Behold, verily, verily, I say unto you, ye must watch and pray always lest ye enter into temptation; for Satan desireth to have you, that he may sift you as wheat. Therefore ye must always pray unto the Father in my name; And whatsoever ye shall ask the Father in my name, which is right, believing that ye shall receive, behold it shall be given unto you. Pray in your families unto the Father, always in my name, that your wives and your children may be blessed.” (3 Nephi 18:18-21)
-Are those who do not earnestly and consistently pray in Christ’s name inevitably under the control of Satan to one degree or another?
-Or, is it more that Satan works particularly hard on those who have covenanted to follow Christ, so that prayer becomes absolutely necessary (to survive spiritually) for those who have entered the covenant path?
-If Satan knows that those who don’t have the law (i.e. don’t have the gospel of Jesus Christ) won’t be judged accordingly, would he also understand that efforts to tempt and destroy such souls would have little eternal affect?