The inmost kernel of our being may be said to be sheathed in our faith-body or astral body, in our body of love or etheric body, and in our hope-body or physical body; and we comprehend the true significance of our physical body only when we bear in mind that, in reality, it is not sustained by external physical forces of attraction and repulsion — that is a materialistic idea — but has in it what, according to our concepts, we know as forces of hope. Our physical body is built up by hope, not by forces of attraction and repulsion. This very point can show that the new spiritual-scientific revelation gives us the truth.
What then does Spiritual Science give us? By revealing the all-embracing laws of karma and reincarnation, it gives us something which permeates us with spiritual hope, just as does our awareness on the physical plane that the Sun will rise tomorrow and that seeds will eventually grow into plants. It shows, if we understand karma, that our physical body, which will perish into dust when we have gone through the gate of death, can through the forces permeating us with hope be rebuilt for a new life. Spiritual Science fills us with the strongest forces of hope. Were this Spiritual Science, this new revelation for the present time, to be rejected, men naturally would return to Earth in future all the same, for life on Earth would not cease on account of people's ignorance of its laws. Human beings would incarnate again — but there would be something very strange about these incarnations. Men would gradually become a race with bodies wrinkled and shriveled all over, earthly bodies which would finally be so crippled that people would be entirely incapacitated. To put it briefly, in future incarnations a condition of dying away, of withering up, would assail mankind if their consciousness, and from there the hidden depths of their being right down into the physical body, were not given fresh life through the power of hope.
This power of hope arises through the certainty of knowledge gained from the laws of karma and reincarnation. Already there is a tendency in human beings to produce withering bodies, which in future would become increasingly rickety even in the very bones. Marrow will be brought to the bones, forces of life to the nerves, by this new revelation, whose value will not reside merely in theories but in its life-giving forces — above all in those of hope.
Faith, love, hope constitute three stages in the essential being of man; they are necessary for health and for life as a whole, for without them we cannot exist. Just as work cannot be done in a dark room until light is obtained, it is equally impossible for a human being to carry on in his fourfold nature if his three sheaths are not permeated, warmed through, and strengthened by faith, love, and hope. For faith, love, hope are the basic forces in our astral body, our etheric body, and our physical body.
Related post: https://martyrion.blogspot.com/2019/02/every-sunday-morning-at-9-oclock.html