How significant is this week's season finale of Bones?

So significant that Fox has invented new words to describe developments from it, as the following promo teases "The Beginning in the End" as depicting one of the most "life-changeingest moments ever."

Does this involve Angela and Hodgins' wedding? Brennan's decision to relocate? Watch the video and decide for yourself...

[video url="http://www.tvfanatic.com/videos/bones-finale-tease/" title="Bones Finale Tease"] [/video]

As previous Bones spoilers (and Emily Deschanel) have revealed, "there are big changes, and decisions are made that affect the future for Booth and Brennan [on the epislde]. But also the future for other characters as well."

Below, we've posted a series of photos from the fifth season finale:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.