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Being greatly harassed by the arrows of Krsna, all the associates of Lord Siva, the hobgoblins and ghostly Bhutas, Pretas and ksatriyas, left the battlefield.
https://harekrishnainfo.blogspot.com/search/label/GhostWar
Lord Siva then took to his last resort. He released his greatest death weapon, known as Siva-jvara, which destroys by excessive temperature. It is said that at the end of creation the sun becomes twelve times more scorching than usual. This twelve-times-hotter temperature is called Siva-jvara. When the Siva-jvara personified was released, he had three heads and three legs, and as he came toward Krsna it appeared that he was burning everything into ashes. He was so powerful that he made blazing fire appear in all directions, and Krsna observed that he was specifically coming toward Him.
As there is a Siva-jvara weapon, there is also a Narayana-jvara weapon. Narayana-jvara is represented by excessive cold. When there is excessive heat, one can somehow or other tolerate it, but when there is excessive cold, everything collapses. This is actually experienced by a person at the time of death. At the time of death, the temperature of the body first of all increases to 107 degrees, and then the whole body collapses and immediately becomes as cold as ice. To counteract the scorching heat of the Siva-jvara, there is no other weapon but Narayana-jvara.
Therefore, when Lord Krsna saw that the Siva-jvara had been released by Lord Siva, He had no recourse other than to release the Narayana-jvara. Lord Sri Krsna is the original Narayana and the controller of the Narayana-jvara weapon. When the Narayana-jvara was released, there was a great fight between the two jvaras. When excessive heat is counteracted by extreme cold, it is natural for the hot temperature to gradually reduce, and this is what occurred in the fight between Siva-jvara and Narayana-jvara. Gradually, Siva-jvara's temperature diminished, and Siva-jvara began to cry for help from Lord Siva, but Lord Siva was unable to help him in the presence of the Narayana-jvara. Unable to get any help from Lord Siva, the Siva-jvara could understand that he had no means of escape outside surrendering unto Narayana, Lord Krsna Himself. Lord Siva, the greatest of the demigods, could not help him, what to speak of the lesser demigods, and therefore Siva-jvara ultimately surrendered unto Krsna, bowing before Him and offering a prayer so that the Lord might be pleased and give him protection.
....After hearing the Siva-jvara, Lord Krsna replied, "O three-headed one, I am pleased with your statement. Be assured there is no more suffering for you from the Narayana-jvara. Not only are you now free from fear of Narayana-jvara, but anyone in the future who simply recollects this fight between Siva-jvara and Narayana-jvara will also be freed from all kinds of fearfulness." After hearing the Supreme Personality of Godhead, the Siva-jvara offered his respectful obeisances unto His lotus feet and left.
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