II. The Transformation of Earthly Forces into Clairvoyant Faculties
When this question and the forces relevant to it are investigated by clairvoyance, observation must be directed to a very early age of childhood. For it is only then that the forces which can be used for retrospective clairvoyant vision into earlier earth-lives are to be seen at work. In present-day humanity these forces are used for the development of the larynx and everything connected with its functions. They are used especially for the development of that which later on makes the human larynx capable of learning to speak. Therefore the forces that would enable a man to look back into earlier incarnations are there in everyone; but in the present age they are used to such an extent for the development of the organs of speech that in normal circumstances this remembrance of the past is beyond man's reach.
Cite:
GA 140/1913-10-11_02/p006 · edition English