And thirdly, here again, even from the point of view of psycho-physical health and its protection, it is precisely the actual practice and, as interpreted by it, the deepest sayings of the standard Christian mystics which are being most powerfully confirmed,--although necessarily by largely new reasons and with important modifications in the analysis and application of their doctrine,--by all that we have gained, during the last forty years, in definite knowledge of the psycho-physical regions and functions of human nature, and, during two centuries and more, in enlargement and precision of our religious-historical outlook. If we consider the specific health-dangers of this way, we shall find, I think, that their roots are ever two. These dangers, and with them the probability of delusion or at least of spiritual barrenness, always become actual, and often acute, the minute that we allow ourselves to attach a primary and independent importance to the psycho-physical form and means of these things, as against their spiritual-ethical content, suggestions, and end; or that we take the whole man, or at least the whole of the religious man, to consist of the specifically mystical habits and life alone. Now the first of these dangers has been ceaselessly exposed and fought by all the great ethical and Christian mystics of the past, _e.g._ St. John of the Cross and St. Teresa; and the latter has been ever enforced by the actual practice, as social religionists, of these same mystics, even if and when some of their sayings, or the logical drift of their speculative system, left insufficient room or no intrinsic necessity and function for such things.