We have gone with a light to the very verge of this truth. We have seen that the Spiritual Life is an endowment from the Spiritual World, and that the Living Spirit of Christ dwells in the Christian. But now the gulf yawns black before us. What more does Science know of life? Nothing. It knows nothing further about its origin in detail. It knows nothing about its ultimate nature. It cannot even define it. There is a helplessness in scientific books here, and a continual confession of it which to thoughtful minds is almost touching. Science, therefore, has not eliminated the true mysteries from our faith, but only the false. And it has done more. It has made true mystery scientific. Religion in having mystery is in analogy with all around it. Where there is exceptional mystery in the Spiritual world it will generally be found that there is a corresponding mystery in the natural world. And, as Origen centuries ago insisted, the difficulties of Religion are simply the difficulties of Nature. One question more we may look at for a moment. What can be gathered on the surface as to the process of Regeneration in the individual soul? From the analogies of Biology we should expect three things: First, that the New Life should dawn suddenly; Second, that it should come "without observation;" Third, that it should develop gradually. On two of these points there can be little controversy. The gradualness of growth is a characteristic which strikes the simplest observer. Long before the word Evolution was coined Christ applied it in this very connection--"First the blade, then the ear, then the full corn in the ear." It is well known also to those who study the parables of Nature that there is an ascending scale of slowness as we rise in the scale of Life. Growth is most gradual in the highest forms. Man attains his maturity after a score of years; the monad completes its humble cycle in a day. What wonder if development be tardy in the Creature of Eternity? A Christian's sun has sometimes set, and a critical world has seen as yet no corn in the ear. As yet? "As yet," in this long Life, has not begun. Grant him the years proportionate to his place in the scale of Life. "The time of harvest is _not yet_." Again, in addition to being slow, the phenomena of growth are secret. Life is invisible. When the New Life manifests itself it is a surprise. _Thou canst not tell whence it cometh or whither it goeth._ When the plant lives whence has the Life come? When it dies whither has it gone? _Thou canst not tell ... so is every one that is born of the Spirit. For the kingdom of God cometh without observation._