There are many systems of healing, and their number is growing steadily, but there is no single system in existence as yet that is based on all the laws of life. Disease comes from the violation of one or more of the laws of life, therefore, it can be cured only by bringing mind and body back again into harmony with those laws that have been violated; but if the system of healing employed ignores certain laws it is unable to bring mind and body back into harmony when those certain laws are violated. Here we find the real cause of failure in all systems. A system that is only physical can produce cures when certain physical laws are violated, but it is powerless when the malady comes from the violation of moral or mental laws. A system that ignores all laws except a few mental laws may produce cures when it is those few mental laws that have been violated, but when the trouble comes from the violation of other laws such a system can do nothing. It is, therefore, simple to understand that a complete system of healing must not only recognize all the laws of life, but must embody exact scientific methods for correcting all the possible violations of those laws. Such a system must be both physical and metaphysical and must have the understanding of all the laws of life as its foundation. That such a system could cure everything is a foregone conclusion, and that it is possible to formulate such a system every thinker must admit.