Because I live, ye shall live also. – John 14:19

Life, what is it? We know practically, but we cannot tell in words. We know it, however, to be a mystery of different degrees. As all flesh is not the same flesh, so all life is not the same life. There is the life of the vegetable, the cedar of Lebanon, the hyssop on the wall…Animal life rises far above the experience and apprehension of the flower of the field. Then there is mental life, which we all of us possess, which introduces us into quite another realm from that which is inhabited by the mere beast. To judge, to foresee, to imagine, to invent, to perform moral acts, are not these new functions which the ox hath not? Now, let it be clear to you, that far above mental life there is another form of life of which the mere carnal man can form no more idea than the plant of the animal, or the animal of the poet. The carnal mind knoweth not spiritual things, because it has no spiritual capacities. As the beast cannot comprehend the pursuits of the philosopher, so the man who is but a natural man cannot comprehend the experience of the spiritually minded. Thus saith the Scripture: “The natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned. But he that is spiritual judgeth all things, yet he himself is judged of no man.” There is in believers a life which is not to be found in other men-nobler, diviner for education cannot raise the natural man into it, neither can refinement reach it; for at its best, “that which is born of the flesh is flesh,” and to all must the humbling truth be spoken, “Ye must be born again.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0968.cfm