Budo is the general term for all Martial Arts in Japan. The older styles are also referred to as Kobudo (Old Budo).
5 fundamental states of mind to pursue in training:
Shoshin - no matter how good you become, keep a beginners mind.
Zanshin - maintain combat alertness.
Mushin - empty your mind, do not think.
Fudoshin - be determined with unshakable will.
Senshin - enlightened attitude.
The following are important attributes in Japanese Martial Way as stressed in the code of Bushido (Way of the Warrior), ethics which the Samurai relentlessly adhered, as their virtues of life both in combat and off combat.
Fighting Spirit is not necessarily violence. Like in 'Iai', the best blade is the one that never left the scabbard. In Jujutsu, "Shinbu Fusatsu" (Don't Kill, Don't Break if not really necessarily). Safeguarding life is the most important thing. Remember, avoiding a fight (if possible) is the first step in self-defense.
Budo is not a race for championship glory or trophies. It is not a hunt for belts, titles or fame. Budo is the forging of the Body, Mind and Spirit as One (Shin Ki Tai Ittoh) trough hard training in the arts of combat.