Faith.

Religious faith, Christian faith, is an especial mysterious state of the soul, or the soul’s abilities, simultaneously penetrating the mind, heart and will, an active power, beginning, capable of totally dominating the spiritual life, the beginning of everything, invigorating, guiding. Faith is the flame, rising above the level of inner life, the witness of "spirit," i.e. the highest structure of the soul. A believing person feels, that he has some kind of advantage compared to an unbelieving person. Faith is the power, the key to the power, but it’s better to express it through the marvelous, figurative expression by Saint John of Kronstadt: "faith is the key to grace" Apostle Paul writes: "we have access by faith into this grace" (Rom. 5:2) in Christianity through faith. Apostle Peter refers to faith as "precious faith" (2 Peter 1:1). According to the ancient fathers’ figurative expression, faith is a ladle that draws from the Divine source. It makes such achievements — which would be completely impossible without faith — possible: they are expressed in the gift of performing miracles. Christ promised, "In My name they will cast out demons; they will speak with new tongues; they will take up serpents; and if they drink anything deadly, it will by no means hurt them; they will lay hands on the sick, and they will recover" (Mark 16:17) — as confirmed thousands of times throughout the history of the Christian Church. Thus, faith provides the means for the human spirit to penetrate into the mysterious, spiritual, unseen domain, which "is the revelation (i.e. exposure of the activity of powers) of unseen things."