Seishin teki kyoyo (精神的 教養), (סיישין טקי קיו-יו) is spiritual education in Ninjutsu. It depicts the mental, spiritual and emotional aspects acompanying the practice of koryu and especially Ninjutsu in the Takamatsu den.
Of some interest might be the fact that none of these Takamatzu den principles deals with winning in battles or handling fear but all are aspects of general spiritual development.
The Seven aspects of Ninjutsu spiritual development the Seishin teki Kyoyo
- Self knowledge
- Understanding nature (reality)
- Fate (knowing one's destiny or call)
- The heart (Kokoro)
- The Eye
- Love 
- The seven principles were hang on the wall in Doron Navon's dojo and do not have any other source