General & Others Was Kuzan in God Valley?

[Monkey D Theories]

Spoiler

Wonder what he was referring to when he said this. Probably nothing important...unless it is

 

[Warchief Sanji D Goat]

I think Kuzan meant that he is grateful for Garp's instructions. As Garp used to be his teacher iirc? Hence the "I owed a debt to your grandpa... A long time ago."