The two statements that illustrate the central ideas are the following: <em>“Before the dawn of history mankind was engaged in the study of dreaming.” </em>And<em>“The subject of the significance of dreams, so long ignored, has suddenly become a matter of energetic study and of fiery controversy the world over.”</em>
Explanation:
The central ideas are the study of dreaming and how ignored this was. This passage explains why dreams could be seen as not very important. However, people have become more conscious about it and now research about dreams has increased.
