"The Richie McCaw that will take on the Wallabies pack in Sydney on Saturday night will not be the same Richie McCaw you might see on the weekend in Christchurch," Mr Light said.
"Leading up to the match teams have a similar progressions of rituals that intensify bonds between players, integrate them into the team and prepare them for battle.
"Donning the team's and nation's colours is a symbolic act but with more meaning than just having had to earn the jersey. They also mark entry into, and believing in, the culture of the team and its values that will be enacted on the field."
Once out of the changing room, the final ritual for the All Blacks was the haka - a spectacular ritual that had a powerful influence both on the team performing it, and also on the team facing it, Mr Light said.
"Although there have been complaints about how it can intimidate the opposition, all teams respect it as part of rugby heritage and a spectacle that sets rugby apart from other sports.
"On show for the whole world, the haka also confirms shared cultural beliefs and values for New Zealanders.
"It communicates much about New Zealand culture to the outside world and about the successful integration of Maori and Pakeha culture on and off the rugby field."