As the body cannot thrive on empty husks, neither can the spirit be sustained on empty pleasures. If not regularly fed the body loses its vitality, and pained with hunger and thirst, cries out for food and drink. It is the same with the spirit it must be regularly nourished in solitude on pure and holy thoughts or it will lose its freshness and strength, and will at last cry out in its painful and utter starvation. The yearning of an anguish stricken soul for light and consolation is the cry of a spirit that is perishing of hunger and thirst. All pain and sorrow is spiritual starvation, and aspiration is the cry for food. It is the Prodigal Son who, perishing of hunger, turns his face longingly toward his Father home.