"This is a world adept at using the power of the mind."
"Long ago, wizards discovered it. Then they set forth to explore, develop, and expand... just as wizards had done in other worlds. But gradually, things began to change."
"The rhythm of the magic tide in this world always kept changing, and many spells would suddenly fail. The native mages that wizards put great effort into training often defected after growing in power... and many of the fruits that grew naturally were harmless to the natives, but deadly poison to wizards."
"We all know the mind is a very secret existence."
"A world skilled in the power of the mind is also more resistant to external changes compared to other worlds... well, to use the terms of the wizard investigators, this world is too selfish, merely for its own existence, it prevents the people living in this world from pursuing a better future."