dvau bhuta-sargau loke 'smin
daiva asura eva ca
visnu-bhaktah smrto daiva
asuras tad-viparyayah
dvau—two; bhuta—of the living beings; sargau—dispositions; loke—in the world; asmin—in this; daivah—godly; asurah—demoniac; eva—certainly; ca—and; visnu-bhaktah—a devotee of Lord Visnu; smrtah—remembered; daivah—godly; asurah—demoniac; tat-viparyayah—the opposite of that.
"There are two classes of men in the created world. One consists of the demoniac and the other of the godly. The devotees of Lord Visnu are the godly, whereas those who are just the opposite are called demons."
This is a verse from the Padma Purana. Visnu-bhaktas, or devotees in Krsna consciousness, are known as devas (demigods). Atheists, who do not believe in God or who declare themselves God, are asuras (demons). Asuras always engage in atheistic material activities, exploring ways to utilize the resources of matter to enjoy sense gratification. The visnu-bhaktas, Krsna conscious devotees, are also active, but their objective is to satisfy the Supreme Personality of Godhead by devotional service. Superficially both classes may appear to work in the same way, but their purposes are completely opposite because of a difference in consciousness. Asuras work for personal sense gratification, whereas devotees work for the satisfaction of the Supreme Lord. Both work conscientiously, but their motives are different.
The Krsna consciousness movement is meant for devas, or devotees. Demons cannot take part in Krsna conscious activities, nor can devotees in Krsna consciousness take part in demoniac activities or work like cats and dogs simply for sense gratification. Such activity does not appeal to those in Krsna consciousness. Devotees accept only the bare necessities of life to keep themselves fit to act in Krsna consciousness. The balance of their energy is used for developing Krsna consciousness, through which one can be transferred to the abode of Krsna by always thinking of Him, even at the point of death.

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