Everybody prepares for training, or battle, their own way. Depending on my training for the day, I will be more or less aggressive. If I am preparing for highly skilled movements, like gymnastics or olympic lifting, I will try to relax and find a focused concentration in myself. If I am doing a circuit or some heavy lifting, I will simply try to get jacked up. The music I play is a big influence in how I prepare and train. Some of my favorite music to listen to before skills training would be the music of nature. Get outside and enjoy the birds, the ocean breeze, or water flowing down a stream. I find great power in tranquility. I clear my mind and focus on the only thing I am about to do right now. Not this morning, or later tonight or tomorrow. Right now is the moment that we are living in. Embrace it. Now I'm not some tree huggin hippie, I like hardcore too. But there is a time and place for the right type of stimulus. The greater the skill required for a particular exercise, the less external stimulus is necessary. Think of the crowd hushing before a gymnasts takes the stage. Now think of a pr deadlift attempt. Obviously this requires great skill at elite levels, but for the most part, you are simply standing up, albeit with a half ton of weight in some cases. In my opinion, this might require severe external stimulus. The external stimulus should coincide with the internal focus. Do you need to rage, or do you need peace and tranquility to succeed at a particular endeavor? Your preparation should be ever changing or you are not accommodating nor very well balanced in your abilities.