If it is not a mere expression of the sexual drive, then love is based on mental pictures that we form of the beloved. And the more idealistic these mental pictures are, the more blessed the love. Here, too, thought is the father of feeling. People say that love makes us blind to the beloved’s flaws. But we can also turn this around and claim that love opens our eyes to the beloved’s strengths. Many pass by these good qualities without noticing them. One person sees them and, just for this reason, love awakens in the soul. What else has this person done but make a mental picture of what a hundred others have ignored?
— Rudolf Steiner, Intuitive Thinking as a Spiritual Path: A Philosophy of Freedom, Chapter 1: Conscious Human Action (p. 17)