"With the maturity of his soul, a man desires to probe the depths of life, he desires to discover the power latent within him, he longs to know the sources and goal of his life, he yearns to understand the aim and meaning of his life, he wishes to understand the inner significance of things, and he wants to uncover all that is covered by name and form. He seeks insight into cause and effect, he wants to touch the mystery of time and space, and he wishes to find the missing link between God and man — where man ends, where God begins."