True perception of the etheric world after death or here on earth in clairvoyant Imaginations requires greater strength than we usually have between birth and death. We need greater inner strength of soul. We do not perceive the etheric world around us during earthly life because we lack sufficient strength of soul. To perceive the etheric world we must become much more active, work much harder than we do in ordinary life.
After death, too, the soul must be filled with much more active strength than in ordinary life to relate to its environment. Otherwise we do not perceive the etheric world, just as we wouldn’t perceive anything if we lacked all senses in the physical world. Thus, we need a more active strength of soul to find our way after death and not to be deaf and blind, figuratively speaking, to the world we enter then.
Source: Rudolf Steiner – GA 154 – UNDERSTANDING THE SPIRITUAL WORLD (PART ONE) – Berlin, April 18, 1914
Translated by Christian von Arnim and edited by Joachim Reuter