Change is always subjective. All through evolution you find that the conquest of nature comes by change in the subject. Apply this to religion and morality, and you will find that the conquest of evil comes by the change in the subjective alone. That is how the Advaitic system gets its whole force, on the subjective side of man.
Man stands in materialism; you and I are materialists. Our talking about God and Spirit is good; but it is simply the vogue in our society to talk thus: we have learnt it parrot-like and repeat it.
Infinite power of the spirit, brought to bear upon matter evolves material development, made to act upon thought evolves intellectuality, and made to act upon itself makes of man a God. First, let us be Gods, and then help other to be GOds. Be and Make. Let this be our motto.
"The Kingdom of Heaven is within you." Where goest thou to seek for the Kingdom of God, asks Jesus of Nazareth, when it is there, within you? Cleanse the spirit, and it is there. It is already yours. How can you get what is not yours? It is yours by right. You are the heirs of immortality, sons of the Eternal Father.
Strength, strength is what the Upanishads speak to me from every page. This is the one great thing to remember, it has been the one great lesson I have been taught in my life; strength, it says, strength, O man, be not weak. Are there no human weaknesses? - says man. There are, say the Upanishads, but will more weakness heal them, would you try to wash dirt with dirt? Will sin cure sin, weakness cure weakness? Strength, O man, strength, say the Upanishads, stand up and be strong.