The grace of a gentleman is cut off after five generations, that's what it means.
Even as the Great Commander, there was no way to reverse the civilization's laziness, after all, the example of the Green Grass Civilization was right before his eyes. A long time ago, the Green Grass Civilization also had a sense of battle and was able to overcome the Demon·Opium Tree through war.
But the later Green Grass Civilization was so well-protected that it directly became a decaying civilization.
Even that Demon, who was the Great Elder, was helpless to change it, since the entire civilization had begun to crave enjoyment, and it was impossible even for the Great Elder to change everyone's thinking.
Therefore, the best way was still to "get moving"; with a crisis, opportunities would also arise.
As long as this goal was set from the beginning, the successors would get used to it and would not oppose it.