The Hindu calls these illusions "Maya". When in Maya the changes are very interesting, at least for a time it is pleasant and agreeable, so he enjoys the changes. But as soon as the spell is past he begins to realize that it is not stable. He may have enjoyed reputation, love or high life and in that enjoyment he thinks it is the only source of joy and he does not think of anything else. It is like the moving picture which fixes his attention for the time being, then he realizes that these spells are dreams. He thought them real - friendship, power and enjoyment - but he found them false.