Franck belongs in many respects among the mystics, but with peculiar variations of his own from the prevailing historical type of mysticism. He is without question saturated with the spirit of the great mystics; he approves their inner way to God and he has learned from them to view this world of time and space as shadow and not as reality. No mystic, further, could say harsher things than he does of "Reason."[18] Human reason--or more properly "reasoning"--has for him, as for them, a very limited area for its demesne. It is a good guide in the realm of earthly affairs. It can deal wisely with matters that affect our bodily comfort and our social welfare, but it is "barren" in the sphere of eternal issues. It has no eye for realities beyond the world of three dimensions. It goes blind as soon as it tries to speculate about God. He looks for no final results in spiritual matters from intellectual dialectics, whether they be of the old scholastic type, or of the new type of speculations, formulations and subtleties of the Protestant theologians. Franck always comes back to _experience_ as his basis of religion, as his way to truth and to divine things. "Many," he says, "know and teach only what they have picked up and gathered in, without having experienced it {56} in the deeps of themselves."[19] "He who wishes to know what is in the Temple must not stand outside, merely hearing people read and talk about God. _That_ is all a dead thing. He must go inside and have the experience for himself ("selbst erfahren"). Then first everything springs into life."[20] But "experience" with him does not mean enthusiastic visions and raptures. He puts as little value on ecstasies and emotional vapourings as he does on dialectic. Ecstasies lead men as often on false trails as on right tracks. They supply no criterion of certitude; they furnish no concrete ideas or ideals to live by; but still further, they do not bring all the deep-lying powers of the soul into play as any true source of religion must do. _He_ is striving to find a foundation-principle for the spiritual life which shall not be capricious or sporadic, and which shall not be confined to one aspect of the inner self, but which shall burn on as a steady illumination in the soul and be the basis of all moral activity and all spiritual development. He finds this principle, as we have seen, in the Word of God, which is a divine reality, an eternal and self-existent activity, opening upward into all the resources of God, and at the same time forming the fundamental nature and ground-structure of the soul. A person may live--many persons do--in the outer region of the self, using the natural instincts with which he is supplied, pursuing the goals of life which appeal to common sense and steering the earthly course by custom and by reason, but it is always possible to have a wider range of experience, to live in deeper currents, and to draw upon a _profounder source of insight_.