User blog comment:Monkey.D.Me/HAKI X haki = ???/@comment-4329230-20120104205916/@comment-4820500-20120308045120

well there is strong and weak haki because your haki is based off your spirit so if you have a weak spirit then you get overpowered, also they have said you can train busoshoku & kenbunshoku haki so if someone trains their b&k haki more than who they fight against then they would have the stronger haki