Is Breaking Dawn the end of the series?
Yes, Breaking Dawn is the last book of the series but Stephenie Meyer is also going to put it into Edward's point of view- the first book is called Midnight Sun if you didn't know but yes it is the last book of the series.
all of the titles in the series have to do with time and astrology n stuff. and in every book theres a line that mentions the title. but as for purpose i dunno. i guess for breaking dawn, the series is coming to a conclusion outve the all the darkness bella and edward were put through. its a new day thatll never ever end. its breaking dawn. lol im sorry i might make no since.