think they can kill Visnu / Krishna / God

Demons always think that Viṣṇu can be killed. Therefore, being absorbed in thoughts of Viṣṇu's form to kill Him, at least they have the opportunity to think of Viṣṇu unfavorably.

Demons always think that Visnu can be killed. Therefore, being absorbed in thoughts of Visnu's form to kill Him, at least they have the opportunity to think of Visnu unfavorably. Although they are not devotees, their thinking of Visnu is effective, and thus they generally attain sayujya-mukti. Because the demons consider the Supreme Lord an ordinary living being, they think that they can kill Lord Visnu as one might kill an ordinary person. Another fact disclosed herein is that demons are very much fond of sucking blood. Indeed, all of them are meat-eaters and bloodsuckers. (More...)

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