5．
You"ve had a problem， and you"ve thought about it until you"re tired；
(1) it， maybe sleep on it， and then flash! When you aren"t thinking about it，
(2) the answer has come to you， as a gift from the God．
Of course， all ideas don"t occur like that but so many
(3) ， particularly the most important ones． They burst into the mind， glowing with the heat of creation． How they do it is a mystery but they must come from
(4) ． All of us have experienced this sudden arrival of a new idea． However， it is the easiest to examine it in the great creative personalities， many of
(5) experienced it in a special form and have written it down in their life stories and letters． One can draw
(6) from genius（天才）in any field， from religion， art and music，
(7) in mathematics， science and technical invention．
Take the example of Richard Wagner
(8) his opera "The Rheingold"（《莱茵的黄金》）． Wagner had been
(9) with the idea of the Rheingold for several years， and for many months had been
(10) to begin this composition． On September 4， 1818， he reached Specie， when he was
(11) ． He went to a hotel， could not
(12) for noise out and fever within took a long rest the next day， and in the afternoon rested on a couch
(13) to sleep． Then at last the miracle（奇迹）happened which his unconscious（无意识的）mind had been
(14) for such a long time． Falling into a sleeplike condition， he suddenly felt as though he were
(15) in a flood of water， and rush and roar（咆哮）soon took
(16) shape within his brain． He realized that the Rheingold， which he
(17) have carried about within him but yet he had never able to put it into
(18) had at last taken its shape within him．
In this example， the conscious mind at the moment of
(19) knew nothing of the actual processes by which the
(20) was found．