Wow, i came across this old video and thought to myself wow, such foreshadowing O_O
[ Watch from 5.00 - 10.00 ]
[video=youtube;7o9TXj7WJfQ]http://www.youtube.com/watch?annotation_id=annotation_585379&feature=iv&src_vid=zHNW-PRk_5U&v=7o9TXj7WJfQ[/video]
Even though we did not know about Haki at that time, isn't this similar to what happens when someone awakens haki after bringing it out at a time of need?