The Correct Heart (Seishin)

The essence of nin is the correct heart and mind. The elements of nin are covert [activity], information gathering, disguise, and surveillance. Without first having a correct heart, it is impossible to take advantage of strategy. Koshi said that not cultivating [the proper heart] will cause confusion and distress. The meaning of "correct heart" is the adherence to virtue, righteousness, loyalty, and sincerity. Without maintaining virtue, righteousness, loyalty, and sincerity, it will be impossible to have intrepid spirit.

Essentials of the Correct Heart

WORK IN PROGRESS

WORK IN PROGRESS