Lecture XXI
In this way the living have the possibility of approaching the dead. And similarly the dead have the possibility of working into the thoughts of the living. When you have absorbed the spirit of spiritual science you will be able to form from such arguments a fair conception of the fact that in the materialistic age we human beings have lived through for so long the dead can have less and less influence on the course of events here in the physical world where human beings have turned towards more materialistic ideas relating only to the physical plane, ideas which are of no use to the dead. So events in the physical world now run their course without any, or with only very little, influence from those who have passed on. This will have to change. Active communication must once more be established between the living and the dead. Those who have died must become able to work into the physical world, so that what takes place there no longer goes on solely under the influence of conceptions which arise in this physical world.
Cite:
GA 173c/1917-01-20/p017 · edition English