The soul progresses on its pilgrimage through the world from desire to love. This is the way of the soul: from desire to love. The desiring soul sticks to the physical-sensuous. However, the loving one can be penetrated by the spirit, obeys the spirit, and fulfils the commandment of the spirit. This is the difference of the age of the souls. The young souls are the longing ones, the ripe souls are those which love, which make the spirit work in them. In the soul-world or in the astral world we see this soul body of the human being gleaming in its different qualities, and we can thereby distinguish the degree of maturity of a human soul. All qualities which we can observe in this soul body come from the devotion to the sensuous or from the devotion to the spiritual.
Now we also understand what death means, actually. We want to try to understand the concept, the idea of death once with this idea just won. What happens at first when the human being dies? That which has followed not only the physical principles in his physical body up to now, but what has also complied with the soul principles: the hand which has moved in accordance with the feelings which have surged through the soul, the look which has looked out into the world because it has been carried by the spiritual qualities in the soul, the countenance which has changed its expression depending on the soul, everything that has obeyed the soul in life goes its own ways after the death of the body.
Source: Rudolf Steiner – GA 53 – Origin and Destination of Humanity – Lecture VI: The Soul-world – Berlin 10th, November, 1904
Rudolf Steiner and Annie Besant