248. So the Great Birth can, as yet, be experienced only in its first weak, preliminary symptoms or stages. However, those world redeemers or living beings who have experienced it to its fundamental extent during other lives in higher worlds and are now born to fulfil a mission and create a refined civilization on this Earth, are not prevented from being able to repeat the Great Birth in the physical maturity of their temporary life at the age of thirty. This again means that such persons here in their terrestrial lives, and as far as their bodily structures can sustain it, are able to relive the fundamental form of the Great Birth and - to a certain degree unknown and imperceptible to mankind - appear in an earthly state while still having a transfigured and superhuman existence. And it is this hidden side which fundamentally separates world redeemers from terrestrial people. But here we are touching on themes which will be dealt with later on in Livets Bog.
      The Great Birth cannot take place on Earth in the case of those human beings who gradually become so purified and developed that they are able to receive a fundamental experience of it, but only in worlds which are further forward in evolution. This means that when a terrestrial person has experienced a number of forerunner symptoms of the Great Birth through several lives, and has become mature enough for the genuine experience, he or she will no longer be born on this Earth but in a higher world where the Great Birth is fundamental. But in about three thousand years time the Earth's development will have reached so far that the Great Birth can be experienced here, and the real human kingdom will have arisen within the Earth's horizon. As expressed on the symbol it means that in three thousand years time the Earth will have reached the yellow star which depicts the Great Birth and has begun to gain access to the yellow section.