Ruler of the power of the 'air' ?

Eph 2:1 - 3 ..."And you were dead in your trespasses and sins, that you once practiced as you lived according to the ways of this present world and according to the ruler of the power of the air, the spirit that is now active in those who are disobedient. Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were by nature children of wrath, even as the rest."

power of the air = spirit that justifies disobedience

spirit that justifies disobedience = spirit of rebellion, self will and self ritheousness to serve and magnify oneself

This spirit of the air is worshiped today as "the light", the "light" of "FREEDOM...MY FREEDOM".

The devil is the earthly ruler of this "FREEDOM" spirit power.