Battle Aura was a common concept in Western fantasy novels. It usually referred to a mysterious energy that could increase one's strength. In the process of cultivating battle energy, people usually had to follow some basic principles and methods: 1. Training Internal Strength: The training of fighting spirit usually requires the training of internal strength. This usually included training the body, practicing magic or internal energy spells, etc. Some novels also involved meditation and breathing techniques. 2. Absorb Reiki: In the process of cultivating battle energy, people need to constantly absorb the surrounding Reiki. This could be achieved through some special spells or cultivation methods. 3. Refining Dou Qi Pills: Dou Qi Pills are a precious medicine that can increase one's Dou Qi cultivation. People needed to refine Dou Qi pills to increase their Dou Qi cultivation. 4. Challenge powerful opponents: In the process of cultivating fighting spirit, people need to constantly challenge powerful opponents to improve their cultivation. This could be achieved through in-game battles. It was important to note that the process of cultivating battle energy was a long and arduous process that required perseverance, hard work, and patience. At the same time, there were many uncertainties and risks in cultivating battle energy.