Examples given: Bihar and Jharkhand hold much of the country's mineral wealth and coal, yet are not prosperous, and many of their people have moved elsewhere; Panna district in Madhya Pradesh yields diamonds from kimberlite rock and even on the surface, yet is among the poorest districts; whoever owned the Kohinoor had a bloody history; Rajasthan's prosperity has been wiped out again and again. Like wearing a 400 carat neelam when 4 carat is prescribed, or taking 20 paracetamol instead of one, an energy too strong for a person harms instead of helping: he cannot stay happy, healthy or prosperous.
Metals associated with silicate minerals are not as bad. The Kolar Gold Fields in Karnataka are a very deep underground mine, and that land is good.