Early on in my training, the first few years the basics- the kihon in the Japanese martial arts, and in this case the kihon happo, san shin no kata, ukemi, and kamae was always stressed in every class and in what to practice at home outside of class.
As a compliment to that, or perhaps powering that movement was cultivating the correct attitude and heart about training.
The warrior’s heart.
How to approach the training with humility and a sense of responsibility.
How to commit to serving humanity, family, and friends.
How to set determination on a course of action and continue until it is complete.
How to always be mindful of action and how they represent the Bujinkan and the martial artist.