Kaidou seems to mirror Skypiea, Water 7 and Thriller Bark. In Thriller Bark, the theme was about life and we saw how the dead was given life and Brooke was the perfect example. His DF gave him life after death and he screamed "I'm glad to be alive!!" and got pissed off at one of Hody Jones' officers when he said "Die and become a grudge!!!"
Kaidou is freaking suicidal and wants to die and is pretty much Brooke's opposite. It is also worth noting that Brooke's DF, The Yomi Yomi no mi, is based on the Shintoist land of the dead Yomi, which is guarded by Susanoo, who Kaidou draws reference from.
Kaidou would probably treat Brooke like a sage screaming "TEACH ME HOW TO DIE!!!! PLEASE!!!!!!"
Kaidou is freaking suicidal and wants to die and is pretty much Brooke's opposite. It is also worth noting that Brooke's DF, The Yomi Yomi no mi, is based on the Shintoist land of the dead Yomi, which is guarded by Susanoo, who Kaidou draws reference from.
Kaidou would probably treat Brooke like a sage screaming "TEACH ME HOW TO DIE!!!! PLEASE!!!!!!"