The demigods are empowered administrators of material affairs. The supply of air, light, water and all other benedictions for maintaining the body and soul of every living entity are entrusted to the demigods, who are innumerable assistants in different parts of the body of the Supreme Personality of Godhead. Their pleasures and displeasures are dependant on the performance of yajïas by the human being. Some of the yajïas are meant to satisfy particular demigods; but even in so doing, Lord Viñëu is worshiped in all yajïas as the chief beneficiary. It is stated also in the Bhagavad-gétä that Kåñëa Himself is the beneficiary of all kinds of yajïas: bhoktäraà yajïa-tapasäm. Therefore, ultimate satisfaction of the yajïapati is the chief purpose of all yajïas. When these yajïas are perfectly performed, naturally the demigods in charge of the different departments of supply are pleased, and there is no scarcity in the supply of natural products.