"Life can only be lived looking forward. It is understood when looking backwards" - Hadji From Real Adventures of Jonny Quest Gold Knight's Cel Gallery - Rubberslug
Not sure if you referring to the part of at the very end of that chapter.
But,
It seems to be at the end about a sacrifice that was about a couples baby (which I take is Yuki's parents) who's name was also Kaname. Rido awakened an ancestor with this child who's name was also Kaname. Which I take is this current Kaname who is an ancestor which was mentioned in previous chapters a little bit and this seems to be more of the explanation of what happened and how Kaname became Yuki's "Brother".
At least that's what I get out of it so far.