What is the war between the gods and Asura?

In Indian mythology, God cannot control the kingdom of heaven forever. The war between the gods and Asura was for nectar. At first, the gods attributed their strong physique to their exclusive nectar, but generally speaking, the world attributed this to the sacrifices provided by humans. Demons have been waiting for opportunities to grab nectar, but gods have been strengthened by nectar and can defeat them. Sometimes God uses tricks to stop them from taking nectar. For the devil, especially in later times, they practice asceticism. In this way, we can gain great power to force the gods, especially Brahma, to yield. Many demons are extremely knowledgeable theologians who are good at getting gifts in this way. But God can usually defeat them through pure deception, through their own abstinence, or through secret prayer and similar methods. Although the devil gains strength through asceticism and defeats the gods more and more often, the gods also rule the universe with their fearless courage. All their strength can only be released at the end of each era and when they are facing destruction.