Man has to go through birth and death ever and again, until he has gained his full maturity in order to enter the spiritual world itself, so that he no longer needs physical organs. Thus we have to realise that everything we do by means of our eyes, ears and other senses is work done for the higher life.
Certainly, we have, frequently said that man must develop higher senses, that he must develop the chakrams or holy wheels, which enable him to enter the spiritual world and see it. But how does he come to obtain these holy wheels? Through his work on the physical plane. Here is the place of preparation. Our work here prepares the organs for a higher world.
To be continued
Source: Rudolf Steiner – GA 94 – The Gospel of St. John – Third Lecture – Berlin, 5th March 1906