If you persist in going on in a materialistic frame of consciousness accepting two powers, always battling evil and most of the time observing that evil gets the better of good, that is the kind of universe in which you will live. Most of the time your experience will be on the negative side with some brief interludes of good.
If, through the power of discernment, however, you can mold your consciousness to accept the truth that God, your individual consciousness, is infinite, and besides it there are no other powers, life will unfold gloriously and abundantly.
All that is necessary is inwardly to develop a listening ear and be governed by the Father that is within you, not a Father up in the sky, even though the Master sometimes referred to God as in heaven—at least the Bible said he did. You must remember that there were no tape recorders in his day. Not only that, there was no system of shorthand and probably none of his disciples could read or write. No word of the Master was written until thirty years after the Crucifixion, and I am sure that you do not believe that Jesus could be quoted verbatim after thirty years. True he may have lapsed into the idiom of his day and said, “Your Father in heaven.” That does not mean a Father up in the sky, but the Father in consciousness. The essence of his teaching was: “The Father that dwelleth in me, he doeth the works.. . . Neither shall they say, Lo here! or, Lo there! for, behold, the kingdom of God is within you.”
If you can mold your consciousness to accept the truth that the kingdom of God is within you and then rest back and let this kingdom of God govern your life—not being indolent, but always alert, inwardly listening for the “still small voice”—you will find yourself guided, led, advised, counseled, protected, maintained, and sustained by the power that is within you. You will quickly perceive, however, that It does not go out fighting other powers. Rather, It reveals to you that I Am is the power of resurrection. There is no other power; there are no powers to fight. I Am the all-power, the kingdom of all-power within you.
Making your transition from a life lived according to appearances to a life lived according to spiritual discernment is entirely a matter of remolding consciousness, letting old beliefs die, so that truth can be born in you. You will then find that you are the same consciousness you always have been, only now you are not governed by ignorance, mythology, and superstition; now you are governed by an inner voice, direction, counsel, an inner presence, an inner power. You do not send It out to overcome the world. You have overcome the world the moment your consciousness no longer fears appearances. You have overcome the entire world in that moment when you no longer fear or hate appearances.

J. S. Goldsmith: The Art of Spiritual Living. Chapter Two; Remolding Consciousness; The Power of Discernment Must Be Developed; Kindle location: 685-709