And this great building up process is intelligent, purposeful, to a wonderful degree. Man with his boasted intellect cannot explain the real "thingness" of the process. A leading scientist who placed the egg of a small lizard under microscopical examination and then watched it slowly develop has said that it seemed as if some hand was tracing the outlines of the tiny vertebrae, and then building up around it. Think for a moment of the development of the germ within the egg of the humming-bird, or the ant, or the gnat, or the eagle. Every second a change may be noticed. The germ cell draws to itself nourishment from the other part of the egg, and then it grows and reproduces another cell. Then both cells divide--then subdivide until there are millions and millions and millions of cells. And all the while the building up process continues, and the bird or insect assumes shape and form, until at last the work is accomplished and the young bird emerges from the egg. And the work thus commenced continues until the death of the animal. For there is a constant using-up and breaking-down of cell and tissue, which the organism must replace. And so the vegetative mind of the plant, or insect, or animal, or man, is constantly at work building up new cells from the food, throwing out worn-out and used-up material from the system. Not only this, but it attends to the circulation of the blood in order that the materials for the building up may be carried to all parts of the system. It attends to the digestion and assimilation of the food--the wonderful work of the organs of the body. It attends to the healing of wounds, the fight against disease, the care of the physical body. And all this out of the plane of consciousness--in the infant man the animal world, the vegetable kingdom--ever at work, untiring, intelligent, wonderful. And this plane of mind is in man as well as in the plant, and it does its work without aid from the conscious part of man, although man may interfere with it by adverse conscious thought, which seems to paralyze its efforts. Mental Healing is merely the restoring of normal conditions, so that this part of the body may do its work without the hindrance of adverse conscious thought.