The knowledge of the Spirit is the true secret of creativity, leadership and happiness. It is spiritual intelligence that makes an ordinary person a genius. When a genius loses his spiritual intelligence, he becomes quite ordinary.
The mystery of the world is revealed only to the person who can look upon the material world with his physical eyes and simultaneously has the spiritual vision necessary to see the unseen spiritual world. One who knows both Matter and Spirit is thus the true knower, and is a spiritually intelligent being.