In short, man lives through his experiences once more, but in a spiritual way, going backwards from death to birth.
As I said yesterday, it is a part of this experience to feel that beings whom, for the present, we may call ‘superhuman’, are participating in it. Pressing onwards through these spiritual counterparts of our experiences, we feel as if these spiritual beings were showering down their sympathies and antipathies upon our deeds and thoughts, as we experience them backwards. Thereby we feel what each deed done by us on earth, each thought, feeling, or impulse of will, is worth for purely spiritual existence. In bitter pain we experience the harmfulness of some deed we have done. In burning thirst we experience the passions we have harboured in our soul; and this continues until we have sufficiently realised the worthlessness, for the spiritual world, of harbouring passions and have outgrown these states which depend on our physical, earthly personality.
At this point of our studies we can see where the boundary between the psychical and the physical really is. You see, we can easily regard things like thirst or hunger as physical. But I ask you to imagine that the same physical changes that are in your organism when you are thirsty were in a body not ensouled. The same changes could be there, but the soulless body would not suffer thirst. As a chemist you might investigate the changes in your body when you are thirsty. But if, by some means, you could produce these same changes, in the same substances and in the same complex of forces, in a body without a soul, it would not suffer thirst. Thirst is not something in the body; it lives in the soul — in the astral — through changes in the physical body. It is the same with hunger. And if someone, in his soul, takes great pleasure in something that can only be satisfied by physical measures in physical life, it is as if he were experiencing thirst in physical life; the psychical part of him feels thirst, burning thirst, for those things which he was accustomed to satisfy by physical means. For one cannot carry out physical functions when the physical body has been laid aside. Man must first accustom himself to live in his psycho-spiritual being without his physical body; and a great part of the backward journey I have described is concerned with this. At first he experiences continually burning thirst for what can only be gratified through a physical body. Just as the child must accustom himself to use his organs — must learn to speak, for example — so man between death and a new birth must accustom himself to do without his physical body as the foundation of his psychical experiences. He must grow into the spiritual world.
There are descriptions of this experience which, as I said yesterday, lasts one-third of the time of physical life, which depict it as a veritable hell. For example, if you read descriptions like those given in the literature of the Theosophical Society where, following oriental custom, this life is called Kamaloka, they will certainly make your flesh creep. Well, these experiences are not like that. They can appear so if you compare them directly with earthly life, for they are something to which we are so utterly unaccustomed. We must suddenly adapt ourselves to the spiritual counter-images and counter-values of our earthly experience. What we felt on earth as pleasure, is there privation, bitter privation, and, strictly speaking, only our unsatisfying, painful or sorrowful experiences on earth are satisfying there. In many respects that is somewhat horrible when compared with earthly life; but we simply cannot compare it with earthly life directly, for it is not experienced here but in the life after death where we do not judge with earthly conceptions.
To be continued
Source: Rudolf Steiner – GA 234 – Anthroposophy, An Introduction – Lecture IX – Dornach, 10th February 1924