There are many precious things in nature and art, things that are beyond value, yet there is nothing in this world that is more precious than sight; and the most precious of all is insight, to be able to see, to be able to understand, to be able to learn, to be able to know. That is the greatest gift that God can give, and all other things in life are small compared with it. If there is anything that one can do to enrich one's knowledge, to raise one's soul to higher spheres, to allow one's consciousness to expand to perfection, it is to do everything one possibly can to open one's sight, which is the sign of God in man. It is the opening of the sight which is called the soul's unfoldment.