One Word Can Explain Everything

One day, the iron tree bloomed, and its spring buds sprouted in winter. One year, the river turned upside down and the sky was filled with white crows. There is a life where you cannot distinguish between good and evil, and your life is in danger. There is a person who, with this word, is proud of the world. He said that the sky has nine levels and the earth has eight wastelands. I want to fight for supremacy in the seven realms and do not seek shelter in the six realms. I have taken people's grains and traveled all over the world. I have spent three lives with love. I have been an immortal in two lives. I only want to reach the sky with one word!