Hey how did you come up with your nindo.

1) Did you just heard your nindo from someone and told your self that this nindo is going to be the slogan for my life.

OR

2)Your nindo is based from your experience. An example is like what Mae said, "I never go back on my word". You just notice that you are the person that never go back on his word, so the nindo, "I never go back on my word", become your nindo

OR

3) You don't have any nindo.