If we rely on anything else besides faith to maintain the practice of the presence of God, we will certainly fail, whether this is our feelings, or experiences, or sincerity, or good intentions, or reasonings, or plans. The reason these things will fail while faith will not fail is that all these things depend on us, while faith depends on God. It is a gift of God.
Peter KreeftA man walking through a wall is a miracle. A man both walking and not walking through a wall at the same time and in the same respect is a contradiction. God can perform miracles but not contradictions - not because his power is limited, but because contradictions are meaningless.
Peter KreeftSince we are [Christ's] body, we too are the bread that is broken for others. Our failures help heal other lives; our very tears help wipe away tears; our being hated helps those we love.
Peter KreeftThe heart is like a woman, and the head is like a man, and although man is the head of woman, woman is the heart of man, and she turns man's head because she turns his heart.
Peter KreeftThe more we realize we are loved, the more ashamed we are not to love back. The more we sin as a violation of love, not just of law, the more powerful a motive we will have to overcome it. For sin is attractive to us (otherwise we would never be attracted to it) and can be cast out only by something more attractive.
Peter Kreeft