Before you have lived through your present life, you have experienced many others. What you have experienced in your past life will be worked out in a particular way. For example, it might be that you need to have a long life this time so that everything can work out according to what occurred in previous earth lives. However, outer events can be in contradiction to this necessity.
I could have an accident due to external circumstances, and I could die so that, for example, based on my previous earthly life, I die proportionately too early. In connection with the previous life on earth, it is not meant that I should die so early because I still have things to do on earth. However, I could still die. Please do not believe that it is definitely sure that I will not die! I might die; the accident might happen anyway. I might die so that my whole destiny would be changed. For I would not have the experience, I would have had to go through. My whole destiny would be changed! This is where the spiritual being who leads man from earthly life to earthly life can intervene and warn him. There is always an explanation for such a warning.
But of course, the relations are incredibly complicated, and it can also be that this being who wants to protect the human being – if we’re going to call it that – has to do with other beings who prevent this warning. In the spiritual world, such conflicts can undoubtedly take place. But if these evil beings, if I may put it this way, have no particular interest in keeping this warning back, then it comes through. […] And so extraordinary things can happen, even outwardly; this happens countless times.
Source (German): Rudolf Steiner – GA 350 – Rhythmen im Kosmos und im Menschenwesen / Wie kommt man zum Schauen der geistigen Welt? – Dornach, June 13, 1923 (page 92-93)
Translated by Nesta Carsten-Krüger