2. Nirvana rebirth is that Buddhism starts from the "origin theory" and reveals that human beings are empty and everything is empty. But if everything is "empty", goals, ideals and conversions. In order to prevent this, Buddhism also proposes that there is an entity characterized by emptiness, which is independent and eternal, and it is "Nirvana". Buddhism affirms the existence of nirvana. Is this contradictory to its world view that everything is empty? The answer is no, Buddhism says that "everything is empty", which is aimed at the "promising method" born of karma. The nirvana world does not belong to the "law of action" created by karma, but to the "law of inaction" created by non-karma, so it does not belong to the category of "emptiness" In this sense, "Nirvana" is also translated as "no life", "inaction" and "no movement".
In the legend of phoenix nirvana, the phoenix is the messenger of human happiness. Every 500 years, it will bear all the unhappiness and hatred accumulated in the world, throw itself into flames, set itself on fire, and exchange the end and beauty of life for peace and happiness in the world. It is also after the body has experienced great pain and tempering that they can be reborn with a better body. This story and its metaphorical meaning are called "Nirvana" in Buddhist scriptures.