God is present everywhere

Because God is present everywhere, the fallen spirits cannot do what they want. They can harm us mostly through other people. We can protect ourselves from them only with the power of God. Man has been given great strength, and if we could only concentrate our thoughts in prayer, the fallen spirits would not be able to harm us or to do anything contrary to the will of God. Where there is prayer, the fallen spirits have no power.

Everything is constantly changing: nothing remains static. We perfect ourselves either in good or in evil.

“Our Thought Determine Our Lives” The Life and Teachings of Elder Thaddeus of Vitovnica. St. Herman of Alaska Brotherhood 2009.